A speechifier can be described using various synonyms such as orator, speaker, rhetorician, sermonizer, declaimer, and pontificator. An orator is typically a skilled public speaker who can sway opinions and deliver a powerful speech. A speaker is simply someone who addresses an audience. A rhetorician is someone who is skilled in using persuasive language in order to convey their message. A sermonizer is often used to describe someone who delivers a moral or religious speech. A declaimer can refer to a person who delivers a speech in a dramatic or theatrical manner. Finally, pontificator is often used to describe someone who speaks in an authoritative and pompous manner.