"closest" in the adjective sense
1. close
at or within a short distance in space or time or having elements near each other
"close to noon"
"how close are we to town?"
"a close formation of ships"
2. close
close in relevance or relationship
"a close family"
"we are all...in close sympathy with..."
"close kin"
"a close resemblance"
3. near, close, nigh
not far distant in time or space or degree or circumstances
"near neighbors"
"in the near future"
"they are near equals"
"his nearest approach to success"
"a very near thing"
"a near hit by the bomb"
"she was near tears"
"she was close to tears"
"had a close call"
4. close
rigorously attentive strict and thorough
"close supervision"
"paid close attention"
"a close study"
"kept a close watch on expenditures"
5. close, faithful
marked by fidelity to an original
"a close translation"
"a faithful copy of the portrait"
"a faithful rendering of the observed facts"
6. close, tight
of a contest or contestants) evenly matched
"a close contest"
"a close election"
"a tight game"
7. close, confining
crowded
"close quarters"
8. airless, close, stuffy, unaired
lacking fresh air
"a dusty airless attic"
"the dreadfully close atmosphere"
"hot and stuffy and the air was blue with smoke"
9. close, tight
of textiles
"a close weave"
"smooth percale with a very tight weave"
10. close
strictly confined or guarded
"kept under close custody"
11. close
confined to specific persons
"a close secret"
12. close, snug, close-fitting
fitting closely but comfortably
"a close fit"
13. close
used of hair or haircuts
"a close military haircut"
14. cheeseparing, close, near, penny-pinching, skinny
giving or spending with reluctance
"our cheeseparing administration"
"very close (or near) with his money"
"a penny-pinching miserly old man"
15. close, closelipped, closemouthed, secretive, tightlipped
inclined to secrecy or reticence about divulging information
"although they knew her whereabouts her friends kept close about it"
"closest" in the adverb sense
1. nearest, nighest, closest
superlative of `near' or `close') within the shortest distance
"that was the time he came nearest to death"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
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