New Two-Letter Words

According to NASPA, there are only 4 new two-letter words:

New Word	Definition and Extensions	Notes
DA	dad [n -S]	family.txt
GI	a martial arts garment [n -S]	japanese.txt
PO	a chamber pot [n -S]	toilet.txt
TE	the musical note TI [n -S]

New Three-Letter Words

According to NASPA, there are 66 new three-letter words. The following 66 are what we have found:

New Word	Definition and Extensions	Notes
AJI	a spicy pepper [n -S]
CAF	a cafeteria or cafe [n -S] : CAFF(s)	coffee.txt
CAL	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
CUZ	coz (cousin) [n CUZZES]	family.txt
DAS	da [n]
DEP	a convenience store [n -S]
DOH	the first tone of the diatonic scale, Homer [n -S]	also an interjection
DUM	cooked with steam [adj]
ECO	ecology [n -S]
EEW	eeew [interj]
EMO	a style of rock music with emotional lyrics [n -S] : EMOCORE(s)
EST	a group technique for raising self-awareness [n -S]	trademark?
FAH	fa [n -S]
FOO	a name for a temporary computer variable or file [n -S]	finally, BAR has its missing companion. Computers.txt
GIF	a computer file in a type of image format [n -S]
GIS	gi [n]
GRR	use to express anger or annoyance [interj]
HOM	a sacred plant of the ancient Persians [n -S] : HOMA(s)
HOO	used to express surprise or apprechension [interj]
LAH	the tone la [n -S]
LOR	unknown : not in OSPD5 but MW site says it is good
LUD	a form of address to a judge in a court, ma lud [n -S]
LUN	a lee [n -S]
MAM	mother, mama [n -S]	family.txt
MEH	not impressive, boring [interj]
MES	unknown : not in OSPD5 but MW site says it is good
MMM	mm [interj]
MOI	used instead of "who me?" to feign surprise when accused of something [interj]	french.txt
MUX	to multiplex [v -ED -ING -ES]
NAV	navigation [n -S]	aviation.txt
NUG	a chunk of wood sawn from a log [n -S]
OCH	used to express surprise or regret [interj]
OIK	a very rude or stupid person [n -S]	stupid.txt
OMA	grandmother [n -S] : OPA(s)
OOF	used to express discomfort [interj]
OPA	grandfather [n -S] : OMA(s)	family.txt
ORG	an organization [n -S]
OWT	anything [n -S]
PAK	a pack [n -S]
PHO	a Vietnamese soup of rice noodles and veg [n -S]
POS	plural of new PO, or the state of being infected or certain [adj]
REZ	reservation [n REZES or REZZES]
ROO	a kangaroo [n -S]
RYU	a school of Japanese martial arts [n -S]	japanese.txt
SAN	a sanatorium [n -S]	note SANS already good (different definition)
SEV	an Indian food of deepfried strands of flour [n -S]
SEZ	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
SHO	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
SIG	a short personalized message at the end of an email, a signature [n -S]	computer.txt
SOC	a sociology course [n -ES]
SOH	another name for the tone sol [n -S]
SUS	to suss [v SUSED SUSING SUSES]
TEC	a detective [n -S]
TES	plural of the new TE
TIX	tickets [n/pl]
TIZ	tizzy [n TIZES] : TIZ TIZZ TIZZY
TUM	tummy [n -S]
UMS	new definition for um: to hesitate or pause in speaking [v UMMED UMMING UMS]
UNI	university or a uniform [n -S]
VIN	french wine [n -S]	french.txt, alcohol.txt
VOG	air pollution caused by volcanic emissions [n -S]	portmanteau
WUZ	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
XED	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
YAS	ya is an asian pear	new definiton so now YAS is good. Fruit.txt
YER	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
YEZ	unknown : not in OSPD5 but MW site says it is good	not in OSPD5

New Four-Letter Words

There hasn't been an announcement about the number of new four-letter words, but by comparing comparing MW online with OWL2 there appear to be 185 new fours:

New Word	Definition and Extensions	Notes
ACAI	a purple berrylike fruit of a tropical palm [n -S]	fruit.txt
ACRO	a skiing event in which a skier performs acrobatic moves to music [n -S]
AFRO	a curly or frizzy hairstyle [n -S]	about time! Hair.txt
AGLU	agloo [n -S]	more Inuit
AGRO	a student of agricultural studies [n -S]
AJIS	aji [n]
AREG	areas of shifting desert sand dunes [n/pl]
ARGH	used to express despair or frustration [interj] : AUGH	these get added to: AARGH AARRGH AARRGHH
AUGH	used to express despair or frustration [interj] : ARGH	these get added to: AARGH AARRGH AARRGHH
BANC	a bench [n -S]	french.txt
BAWK	an Atlantic seabird [n -S]	birds.txt
BAWN	a meadow for cows [n -S]	cows.txt
BAZZ	to throw (as a stone) [v -ED -ING -ES]
BEAL	an infected sore (a painful place on the body) [n -S] : BEALING(s)
BIBE	a creature whose crying is an omen of death [n -S]	death.txt
BING	used to indicate a sudden action [interj]	fruit.txt
BISH	a bishop [n -ES]	religion.txt
BLAG	to rob with violence [v BLAGGED BLAGGING BLAGS]	crime.txt
BOBO	a well-to-do person who holds bohemian values and leads a bourgeois life [n -S]
BURK	a berk [n -S]
CAFS	caf [n]	coffee.txt
CALS	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
CAMI	a camisole [n -S]
CAVA	a sparkling Spanish wine [n -s]	alcohol.txt
CAZH	slang for casual [adj]
CERT	an event considered certain to happen [n -S]
CHEM	a chemistry class or course [n -S]
CHOC	a piece of chocolate [n -S]	candy.txt
CINQ	cinque (the number 5) [n -S]	french.txt
CLEG	a horsefly [n -S]	insects.txt
CLIT	unknown : not in OSPD5 but MW site says it is good	expurgated?
COMM	communications [n -S] : COMMO(s)
CRIP	unknown : not in OSPD5 but MW site says it is good	assuming this will be in expurgated list
CUMS	unknown : not in OSPD5 but MW site says it is good	assuming this will be in expurgated list
DEPS	dep [n]
DESI	a person of Indian, Pakistani, or Banladeshi birth who lives abroad [n -S]	hindu.txt
DEVI	a Hindu goddess [n -S]	hindu.txt
DOBE	adobe [n -S]	already good:ADOBE DOBIE DOBY, polyorth list
DOHS	doh [n]	also an interjection
DOOB	a doobie [n -S]	smoking.txt
DOSA	an Indian pancake made from rice flour [n -S or -I]	hindu.txt
DOSH	money [n]	currency.txt
DOUT	to extinguish (as a fire) [v -ED -ING -S]	fire.txt
ECOS	eco [n]
EEEW	used to express disgust [interj] : EEW
EKKA	a one-horse vehicle of India [n -S]
EMOS	emo [n]
ERUV	an enclosed area in which Jews are permitted to carry on activities normally forbidden on the Sabbath [n -S or -IM]
ESSE	essential nature [n -S]
ESTS	est [n]	trademark?
FAFF	to make a fuss [v - ED -ING -S]
FAHS	fah [n]
FILK	a type of popular music that parodies folk songs [n -S]
FOOS	foo [n]	finally, BAR has its missing companion. Computers.txt
GACH	to gatch [v -ED -ING -ES] : GACHER(s), GACH GATCH GAUCH
GEAN	unknown : not in OSPD5 but MW site says it is good	OED defines as a wild cherry, fruit.txt
GIFS	gif [n]
GOJI	a red berry [n -S]	fruit.txt
GRIZ	a grizzly bear [n GRIZ]
GYNO	a gynecologist [n -S] : GYNIE(s)	reproduction.txt
GYPO	a small-time logging operator [n -S] : GYPPO(s)	trees.txt
HEPS	new definition for hep : hepatitis (inflammation of the liver) [n]	disease.txt
HIYA	used as an informal greeting [interj]	hellogoodbye.txt
HMMM	unknown : not in OSPD5 but MW site says it is good	HM and HMM already good.
HOLO	a hologram [n -S]
HOMA	a hom [n -S]
HOMS	hom [n] : HOMA(s)
HORK	to spit [v -ED -ING -S]
HWYL	an emotion that inspires impassioned eloquence [n -S]
ICKS	new definition for ick : something sticky or disgusting [n]
JIRD	a long-tailed rodent [n -S]
JIZZ	unknown : not in OSPD5 but MW site says it is good	predicting this will be in the expurgated list
JOOK	a tavern that has a jukebox [n -s}
JUDY	a woman [n JUDIES]	names.txt
KAPU	a Hawaiian set of rules for daily life [n -S]
KETA	a type of salmon [n -S]	fish.txt
KRAI	an administrative district in Russia [n -S] : KRAY(s)
KRAY	krai [n -S]
LAHS	lah [n]
LARN	to learn [v -ED or -T, -ING -S]
LEDE	the introductory section of a news story [n -S]	another about time
LEVS	new plural for lev [n] : LEVA	currency.txt
LIAS	a blue limestone rock [n -ES]
LIPO	liposuction [n -S]
LOTO	lotto [n -S]
LUDO	a simple board game [n -S]
LUDS	a form of address to a judge in a court, ma lud [n -S]
LUNS	lun [n]
MAKI	a sushi roll [n -S]	japanese.txt
MAMS	mam [n]	family.txt
MECH	a mechanic [n -S]	cars.txt
MOFO	unknown : not in OSPD5 but MW site says it is good	predict this will be in the expurgated list
MOHO	a boundary separating the earth's crust and the mantle [n -S]
MOOK	a foolish or contemptible person, or a bad guy in a movie [n -S]
MUNG	a round green bean [n -S]
MUSO	a musician [n -S]
NAES	new plural, nae [n]
NAGA	a half-snake, half-human creature in Hinduism [n -S]	hindu.txt
NANO	science that deals with materials on an atomic or molecular scale [n -S]	numbers.txt
NAVS	nav [n]	aviation.txt
NEWB	a newbie [n -S]
NIFF	to stink [v -ED -ING -S]
NUFF	enough [n -S]	polyorth
NUGS	nug [n]
NYAH	used to express contempt for another [interj]
OATY	tasting or smelling of oats [adj OATIER OATIEST]
OCHE	a line behind which players stand when throwing darts [n -S]
OFFA	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
OIKS	oik [n]	stupid.txt
OLDE	old [adj]
OMAS	oma [n]
OPAS	opa [n]	family.txt
ORGS	org [n]
OUTA	unknown : not in OSPD5 but MW site says it is good	not in OSPD5
OWLY	resembling an owl [adj OWLIER OWLIEST]	birds.txt
OWTS	owt [n]
OXER	a fence for keeping in cattle [n -S]	cows.txt
OXIC	denoting a process involving oxygen [adj]
PAAN	a betel leaf folded around pieces of betel nut and spices [n -S]
PAKS	pak [n]
PALI	a cliff in Hawaii [n -S]
PAUA	Maori name for abalone shell [n -S]	(but IWI* is still not good)
PERC	a chemical used in dry cleaning [n -S]
PHOS	pho [n]
PIPA	a four-stringed Chinese lute [n -S]	musicalinstruments.txt
POGO	to jump up and down as if on a pogo stick [v -ED -ING -S or -ES]	trademark?
PROB	a problem [n -S]	math.txt
PUDU	a small deer of South America [n -S]
PULK	a small sled [n -S] : PULKA(s)	Inuit
RENO	a renovated house [n -S]	places.txt
ROOS	roo [n]
RUKH	a roc [n -S]	birds.txt
RYUS	ryu [n]	japanese.txt
SEPS	an african lizard [n -ES]	SEPSES already existed as a plural of SEPSIS. Reptiles.txt
SESH	a session [n -ES]
SEVS	sev [n]
SHEN	the spiritual element of a person's psyche [n SHEN]
SHHH	SH [interj} : SH SHH SHHH	SH and SHH were good already
SIGS	sig [n]	computer.txt
SITU	unknown : not in OSPD5 but MW site says it is good	SITUS was already acceptable
SKED	to schedule [n SKEDDED SKEDDING SKEDS]
SKOL	to skoal (to drink to the health of) [v -ED -ING -S]	alcohol.txt
SKRY	to scry [v -SKRIED SKRYING SKRIES]
SOHS	soh [n]
SOJU	a Korean vodka distilled from rice or sweet potato [n -S]	alcohol.txt
SUKH	a souk [n -S]	SOOK SOUK SUK SUQ already good. Polyorth
SUMI	a type of black Japanese ink [n -S]	japanese.txt
SUMY	new definition and plural for sum: a monetary unit of Uzbekistan	currency.txt
TASE	to stun with a gun that fires electified darts [v TASED TASING TASES]	crime.txt
TECS	tec [n]
TEGU	a large lizard of South America [n -S]	reptiles.txt
TEIN	a monetary unit of Kazakhstan [n -S]	currency.txt
TIAN	a large oval cooking pot [n -S]
TIYN	tyin [n -S] : TIYIN(s) TIYN(s) TYIN TYIYN	TYIN and TYIYN were already good (but they don�t take -S). Currency.txt
TIZZ	tizzy [n TIZZES] : TIZ TIZZ TIZZY
TOCK	a short, hollow sound [n -S]
TOCO	a South American toucan [n -S]	birds.txt
TOLT	an isolated hill [n -S]	mountain.txt
TOSA	a dog of a breed of mastiff [n -S]	dogs.txt
TREM	an electric guitar lever for producing a tremolo [n -S]	musicalinstruments.txt
TROU	trousers [n/pl]
TUMS	tum [n]
TURR	a murre [n -S]	birds.txt
UMMA	the whole community of Muslims [n -S] : UMMAH(s)	arabic.txt
UMPH	oomph [n -S]
UNIS	uni [n]
VEGA	a large plane or valley [n -S]
VIFF	to change direction abruptly of a VTOL aircraft [v -ED -ING -S]	aviation.txt
VINS	vin [n]	french.txt, alcohol.txt
VLEI	a hollow in South Africa in which water collects [n -S]
VLOG	to blog videos [v VLOGGED VLOGGING VLOGS] : VLOGGER(s)	computer.txt
VOGS	vog [n]	portmanteau
VOLK	the Afrikaner people [n -S]
VULN	to wound [v -ED -ING -S]
WAAH	used to express wailing [interj]
WALI	the governor of a province in an Arab country [n -S]
WETA	a large wingless insect of New Zealand [n -S]	insects.txt
WIKI	a website that allows users to add and edit content [n -S]	computer.txt
YAGE	a tropical vine of the Amazon region [n -S]
YEOW	used to express pain or shock [interj]
YOMP	to march with heavy gear over rough terrain [v -ED -ING -S]
YOOF	youth [n -S]
YUZU	an asian citrus fruit [n -S]	fruit.txt, japanese.txt
ZEDA	grandfather [n -S : ZAIDA ZAIDEH ZAIDY ZEDA	yiddish.txt
ZIZZ	to make a buzzing sound [v -ED -ING -ES]