A person who speaks; the speaker (the one who talks or makes an utterance).
会議では話し手と聞き手の役割を交代して進めた。
In the meeting we proceeded by alternating the roles of speaker and listener.
彼は速く話す話し手なので、ノートをとるのが大変だ。
He is a fast-speaking speaker, so it's hard to take notes.
プレゼンでは話し手の声が聞き取りやすいようにマイクを使った。
For the presentation we used a microphone so the speaker's voice would be easy to hear.
Someone skilled at speaking; a good conversationalist who speaks persuasively or entertainingly.
彼女は話し手として非常に優れていて、どんな場でも人を惹きつける。
She is an excellent speaker and can captivate people in any setting.
営業では話し手の技術が成否を分けることが多い。
In sales, a speaker's communication skills often determine success or failure.