to increase the strength of sound using electricity

increase in size or effect

(to cause something) to become wider, larger, further open

stretch, widen

(to cause something) to become larger

make or grow bigger; increase

to tell (a story); give an account of (something)

describe, detail

to say (poems, speeches in a play) aloud from memory

read out loud; narrate

to speak one's thoughts

read out loud; narrate

to use one's voice to say words; to give a formal speech

talk

any one of the bars or wire rods connecting the centre of a wheel with the outer edge

talk