mas in Tokpisin translates to must in English

other tokpisin words that include "mas" :	english :
win masin	air conditioner
maski	although
mekim i masis	blow out a match
masta, bos	boss
krismas	Christmas
boamasin	drilling machine
hamamas tru	enjoy
mastamisis, ol waitman	Europeans
tumas, mo, tru	extremely
maski	forget about, ignore
masket, raifol, gan	gun
amamas, hamamas	happy
hamas	how much/many
ston masis	light the lamp
masin	machine
Mas	March
masis	matches
masis i kol	matches are wet, won't light
mastet	mustard
maski	never mind
hamas	quantity
masalai	spirit
i go daun tumas	steep
slekim masis	strike a match
masta mak	surveyor
tumas, tu	too
tumas, mo, tru	very
tru, tumas, mo mo y	very much
masta	white adult male (term originated in colonial times)
nais tumas	wonderful
krismas	year (of age)
gut tumas	great
hamas krismas yu gat?	how old are you?