Definitions
1.nounAn act of folding."After two reraises in quick succession, John realised his best option was probably a fold."
2.nounA bend or crease.
3.nounAny correct move in origami.
4.noun(newspapers) The division between the top and bottom halves of a broadsheet: headlines above the fold will be readable in a newsstand display; usually the fold.
5.noun(by extension) The division between the part of a web page visible in a web browser window without scrolling; usually the fold.
6.nounThat which is folded together, or which enfolds or envelops; embrace.
7.nounThe bending or curving of one or a stack of originally flat and planar surfaces, such as sedimentary strata, as a result of plastic (i.e. permanent) deformation.
8.nounIn functional programming, any of a family of higher-order functions that process a data structure recursively to build up a value.
9.nounA section of source code that can be collapsed out of view in an editor to aid readability.
10.verbTo bend (any thin material, such as paper) over so that it comes in contact with itself.
11.verbTo make the proper arrangement (in a thin material) by bending."If you fold the sheets, they'll fit more easily in the drawer."
12.verbTo become folded; to form folds."Cardboard doesn't fold very easily."
13.verbTo fall over; to be crushed."The chair folded under his enormous weight."
14.verbTo enclose within folded arms (see also enfold).
15.verbTo give way on a point or in an argument.
16.verbTo withdraw from betting."With no hearts in the river and no chance to hit his straight, he folded."
17.verb(by extension) To withdraw or quit in general.
18.verbTo stir gently, with a folding action."Fold the egg whites into the batter."
19.verbOf a company, to cease to trade."The company folded after six quarters of negative growth."
20.verbTo double or lay together, as the arms or the hands."He folded his arms in defiance."
21.verbTo cover or wrap up; to conceal.