Definitions
1.VerbTo communicate with one's voice, to say words out loud."I was so surprised I couldn't speak.; You're speaking too fast."
2.VerbTo have a conversation."It's been ages since we've spoken."
3.VerbTo communicate or converse by some means other than orally, such as writing or facial expressions."He spoke of it in his diary.; Speak to me only with your eyes.; Actions speak louder than words."
4.VerbTo deliver a message to a group; to deliver a speech."This evening I shall speak on the topic of correct English usage."
5.VerbTo be able to communicate in a language."He speaks Mandarin fluently."
6.VerbTo be able to communicate in the manner of specialists in a field.
7.VerbTo utter."I was so surprised that I couldn't speak a word."
8.VerbTo communicate (some fact or feeling); to bespeak, to indicate.
9.VerbTo understand (as though it were a language)."Sorry, I don't speak idiot.; So you can program in C. But do you speak C++?"
10.VerbTo produce a sound; to sound.
11.VerbOf a bird, to be able to vocally reproduce words or phrases from a human language.
12.VerbTo address; to accost; to speak to.
13.NounLanguage, jargon, or terminology used uniquely in a particular environment or group."corporate speak; IT speak"
14.NounSpeech, conversation. (Can we add an example for this sense?)
15.NounClipping of speaker point."We will deduct speaks for hesitation."
16.Nouna low class bar, a speakeasy.