not accompanied by others; one, solitary, or sole
consisting of a separate unique whole; individual or distinct
every single child
our most important single need
of, suitable for, or involving only one person
a single room
consisting of or having only one part or feature
single thread
having only one aspect as opposed to two or more; uniform
a single standard
(in negative contexts) even one
didn't know a single person
not married
of the unmarried state
the single life
said of a plant or flower: having one set or whorl of petals: compare double1 (8)
said of combat: involving only two people
archaic honest or sincere
a single devotion
singleness noun
singly adv
[Middle English via French from Latin singulus one only]