A vocal performance with no instrumental accompaniment.
Singing solely or mainly without instrumental accompaniment.
Related to a form of purely vocal music mostly associated with American college performance groups.
In a manner of a choir with no instrumental accompaniment; literally, "in the style of the (Sistine) Chapel (in Rome)", such as a musical Mass done a cappella.
A loud noise.
One who yammers.
The act or noise of yammering.
To complain peevishly.
To repeat on and on, usually loudly or in complaint.
To make an outcry; to clamor.
To talk loudly and persistently.