speaking part/role

:  that speaks :  capable of speech

:  that involves talking or giving speeches

:  highly significant or expressive :  eloquent

:  one of the often indefinite or unequal subdivisions into which something is or is regarded as divided and which together constitute the whole

:  an essential portion or integral element

:  one of several or many equal units of which something is composed or into which it is divisible :  an amount equal to another amount

:  to separate from or take leave of someone

:  to take leave of one another

:  to become separated into parts

:  partly

:  partial

: participial; participle

: particular

:  a character assigned or assumed

:  a socially expected behavior pattern usually determined by an individual's status in a particular society

:  a part played by an actor or singer