WordNet sense 1 (the temporal end; the concluding time):

conclusion, finale, finis, finish, last, stopping point

WordNet sense 2 (the last section of a communication):

closing, end, ending

WordNet sense 3 (lacking fresh air):

airless, stuffy, unaired

WordNet sense 4 (not ventilated):

unventilated

WordNet sense 5 (come to a close):

conclude

WordNet sense 6 (cease to operate or cause to cease operating):

fold, close up, close down, shut down

WordNet sense 7 (of textures that are smooth to the touch or substances consisting of relatively small particles):

fine, fine

WordNet sense 8 (under restraint):

restrained

WordNet sense 9 (come together, as if in an embrace):

come together

WordNet sense 10 (confined to particular persons or groups or providing privacy):

private

WordNet sense 11 (fitting closely but comfortably):

close-fitting, snug

WordNet sense 12 (closely constrained or constricted or constricting):

tight

WordNet sense 13 ((primarily spatial sense) having little length or lacking in length):

short

WordNet sense 14 (fill or stop up):

fill up

WordNet sense 15 (become closed):

shut

WordNet sense 16 (giving or spending with reluctance):

penny-pinching, skinny, cheeseparing

WordNet sense 17 (unwilling to spend):

stingy, stingy

WordNet sense 18 (well matched; having the same quantity, value, or measure as another):

equal

WordNet sense 19 (crowded):

confining

WordNet sense 20 (not free to move about):

confined

WordNet sense 21 (inclined to secrecy or reticence about divulging information):

closemouthed, secretive, tightlipped, closelipped

WordNet sense 22 (in an attentive manner):

closely

WordNet sense 23 (marked by close acquaintance, association, or familiarity):

intimate, intimate

WordNet sense 24 (having mutual interests or affections; of established friendship):

familiar

WordNet sense 25 (with or in a close or intimate relationship):

dear, good, near

WordNet sense 26 (suggesting connivance):

cozy

WordNet sense 27 (denoting confidence or intimacy):

confidential

WordNet sense 28 ((used informally) associated on close terms):

thick

WordNet sense 29 (very close in resemblance):

approximate, approximate

WordNet sense 30 (very close or connected in space or time):

contiguous, immediate

WordNet sense 31 (close in time; about to occur):

imminent, impending

WordNet sense 32 (nearest in space or position; immediately adjoining without intervening space):

adjacent, next

WordNet sense 33 (of a seeker; near to the object sought):

warm

WordNet sense 34 (close at hand):

nearby

WordNet sense 35 (not far distant in time or space or degree or circumstances):

nigh

WordNet sense 36 (exercising caution or showing care or attention):

careful

WordNet sense 37 (the concluding part of any performance):

closing curtain

WordNet sense 38 (marked by fidelity to an original):

faithful

WordNet sense 39 (conforming exactly or almost exactly to fact or to a standard or performing with total accuracy):

accurate