Oxford Advanced American Dictionary

Definition of single adjective from the Oxford Advanced Learner's Dictionary

Oxford3000

single

adjective
single pronunciation English ˈsɪŋɡl single pronunciation American ˈsɪŋɡl
 
 

one

1 [only before noun] only oneHe sent her a single red rose.a single-sex school (= for boys only or for girls only)All these jobs can now be done by one single machine.I couldn't understand a single word she said!the European single currency, the euro (British English) a single honours degree (= for which you study only one subject)
 

for emphasis

2 [only before noun] used to emphasize that you are referring to one particular person or thing on its ownUnemployment is the single most important factor in the growing crime rates.We eat rice every single day.
 

not married

3 (of a person) not married or having a romantic relationship with somebodyThe apartments are ideal for single people living alone.Are you still single? see also single parent
 

for one person

4 [only before noun] intended to be used by only one persona single bed/rooma single sheet (= large enough for a single bed) compare double adjective (3)
 

ticket

5 [only before noun] (British English) (also one-way North American English, British English) a single ticket, etc. can be used for travelling to a place but not back againa single ticketHow much is the single fare to Glasgow? compare return noun (7)
Idioms
see
(in) Indian/single file at file noun
, at a (single) glance at glance noun