quote vs single quote

quote and single quote both are nouns.

Word	Noun	Adjective	Verb	Adverb
quote	Yes	No	Yes	No
single quote	Yes	No	No	No

As nouns, single quote is a hyponym of quote; that is, single quote is a word with a more specific, narrower meaning than quote:

quote: a punctuation mark used to attribute the enclosed text to someone else
single quote: a single quotation mark

Other hyponyms of quote include double quotes, scare quote.

quote (noun)	single quote (noun)
a punctuation mark used to attribute the enclosed text to someone else	a single quotation mark
a passage or expression that is quoted or cited

quote (verb)	single quote (verb)
repeat a passage from
refer to for illustration or proof
put quote marks around
name the price of