only one in number; one only; unique; sole

a single example.

of, pertaining to, or suitable for one person only

a single room.

solitary or sole; lone

He was the single survivor.

unmarried

a single man.

pertaining to the unmarried state

the single life.

of one against one, as combat or fight.

consisting of only one part, element, or member

a single lens.

sincere and undivided

single devotion.

separate, particular, or distinct; individual

Every single one of you must do your best. It's the single most important thing.

uniform; applicable to all

a single safety code for all manufacturers.

(of a bed or bedclothes) twin-size.

(of a flower) having only one set of petals.

British . of standard strength or body, as ale, beer, etc. Compare double ( def. 1 ) .

(of the eye) seeing rightly.

to pick or choose (one) from others (usually fol. by out )

to single out a fact for special mention.

Baseball .

to cause the advance of (a base runner) by a one-base hit.

to cause (a run) to be scored by a one-base hit (often fol. by in or home ).

Baseball . to hit a single.

one person or thing; a single one.

an accommodation suitable for one person only, as a hotel room or a table at a restaurant

to reserve a single.

a ticket for a single seat at a theater.

British .

a one-way ticket.

a steam locomotive having one driving wheel on each side.

an unmarried person, esp. one who is relatively young.

Baseball . Also called one-base hit. a base hit that enables a batter to reach first base safely.

singles, ( used with a singular verb ) a match with one player on each side, as a tennis match.

Golf . twosome ( def. 4 ) .

Cricket . a hit for which one run is scored.

Informal . a one-dollar bill.

a phonograph record, CD, or cassette usually having two songs.

one of the songs recorded on a single.

Often, singles. Textiles .

reeled or spun silk that may or may not be thrown.

a one-ply yarn of any fiber that has been drawn and twisted.

adjective

combined , double , mixed , together , united , married , wed , wedded

adjective

distinguished , especial , exceptional , exclusive , individual , indivisible , isolated , lone , loner , not general , not public , odd , one , only , original , particular , peerless , personal , private , rare , restricted , secluded , separate , separated , simple , singled-out , singular , sole , solitary , special , specific , strange , unalloyed , unblended , uncommon , uncompounded , undivided , unique , unitary , unmixed , unrivaled , unshared , unusual , without equal , bachelor , companionless , divorced , eligible , free , living alone , solo , spouseless , unattached , unfettered , unmarried , unwed , lonely , lonesome , unaccompanied , discrete , fancy-free , footloose , alone , azygous , celibate , distinct , frank , honest , ingenuous , mono , part , respectively , sincere , sporadic , uniform , unit , unwedded

verb

cull , elect , opt , pick , select