rostrum vs dais

rostrum and dais both are nouns.

Word	Noun	Adjective	Verb	Adverb
rostrum	Yes	No	No	No
dais	Yes	No	No	No

As nouns, rostrum and dais are synonyms defined as:

rostrum and dais: a platform raised above the surrounding level to give prominence to the person on it

Other synonyms of rostrum include ambo, podium, pulpit, soapbox, stump.

rostrum (noun)	dais (noun)
beaklike projection of the anterior part of the head of certain insects such as e.g. weevils	a platform raised above the surrounding level to give prominence to the person on it
a platform raised above the surrounding level to give prominence to the person on it