speakˈeasy noun (US)

During Prohibition, an illicit bar selling alcohol, a shebeen

speakˈerphone noun

A type of telephone using a combined loudspeaker and microphone

speaking clock noun

A British telephone service which states the exact time when dialled

speaking tube noun

A tube for speaking through to another room

speakˈing-voice noun

The kind of voice normally used in speaking

on speaking terms see under term

so to speak

As one might put it, as it were

speak a ship

To hail and speak to someone on board her

speak fair (archaic)

To address in conciliatory terms

speak for

1. To speak on behalf of or in favour of
2. To be a proof of or witness to
3. To bespeak or engage

speak in tongues see under tongue

speak one's mind see under mind

speak out

To speak boldly, freely, unreservedly, or so as to be easily heard (speakˈout noun)

speak the same language see under language

speak to

1. To converse with, address
2. To rebuke, scold
3. To attest, testify to
4. To comment on, discuss

speak up

1. To speak so as to be easily heard
2. To state one's opinions boldly

to speak of

Worth mentioning