duet

As a determiner both

is each of the two; one and the other.

As a conjunction both

is including both (used with and).

As a noun duet is

duet.

As a noun duet

is duet.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between duet and couplet

is that duet is duet while couplet is (literature) a pair of lines with rhyming end words.

As a verb accompanied

is (accompany).

As a noun duet is

duet.

As a noun duet is

duet.

As nouns the difference between ballad and duet

is that ballad is a kind of narrative poem, adapted for recitation or singing; especially, a sentimental or romantic poem in short stanzas while duet is duet.

As a verb ballad

is (obsolete) to make mention of in ballads.

As a noun duet

is duet.

As nouns the difference between duet and dunt

is that duet is duet while dunt is (scotland) a stroke; a dull-sounding blow.

As a verb dunt is

(scotland) to strike; give a blow to; knock.

As a contraction dunt is

(yorkshire).

As nouns the difference between duett and duet

is that duett is archaic form of lang=en musical performance by two people, lang=en while duet is a musical composition in two parts, each performed by a single voice (singer, instrument or univoce ensemble).

As a verb duet is

to perform a duet.