riff

As an adverb acapella

is an alternative spelling of lang=en.

As a noun riff is

a repeated instrumental melody line in a song.

As a verb riff is

to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.

As nouns the difference between riff and groove

is that riff is a repeated instrumental melody line in a song while groove is a long, narrow channel or depression; e.g., such a slot cut into a hard material to provide a location for an engineering component, a tyre groove, or a geological channel or depression.

As verbs the difference between riff and groove

is that riff is to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes while groove is to cut a groove or channel in; to form into channels or grooves; to furrow.

As an abbreviation iff

is if and only if; used to show that the truth values of two statements are the same.

As an initialism IFF

is interchange File Format, a file format standard developed for Amiga computers.

As a noun riff is

a repeated instrumental melody line in a song.

As a verb riff is

to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.

As nouns the difference between yiff and riff

is that yiff is a bark while riff is a repeated instrumental melody line in a song.

As verbs the difference between yiff and riff

is that yiff is to bark (said of foxes) while riff is to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.

As an interjection yiff

is representing the bark of a fox (especially while mating).

As an acronym YIFF

is young, independent, freedom-minded few (compare yuppie.

As nouns the difference between riff and tiff

is that riff is a repeated instrumental melody line in a song while tiff is a small argument; a petty quarrel.

As verbs the difference between riff and tiff

is that riff is to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes while tiff is to quarrel.

As an acronym TIFF is

tagged image file format.

As a proper noun Tiff is

a nickname for Tiffany.

As a noun rief

is (robbery).

As an acronym riff is

.

As a noun jiff

is (informal) a jiffy; a moment; a short time.

As a verb jiff

is (slang) to deceive, swindle, trick.

As an acronym riff is

.

As a noun diff

is (slang).

As a verb diff

is (computing) to run a diff program on (files or items) so as to produce a description of the differences between them, as for a patch file.

As a proper noun diff

is (computing) a program, historically part of the unix operating system, which compares two files or sets of files and outputs a description of the differences between them.

As an acronym riff is

.

As nouns the difference between ruff and riff

is that ruff is a gregarious, medium-sized wading bird of Eurasia, Philomachus pugnax while riff is a repeated instrumental melody line in a song.

As verbs the difference between ruff and riff

is that ruff is to ruffle; to disorder while riff is to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.

As an adjective ruff

is an alternative spelling of lang=en.

As an interjection ruff

is the bark of a dog; woof.