salaat vs salaah

salaat and salaah both are nouns.

Word	Noun	Adjective	Verb	Adverb
salaat	Yes	No	No	No
salaah	Yes	No	No	No

As nouns, salaat and salaah are synonyms defined as:

salaat and salaah: the second pillar of Islam is prayer; a prescribed liturgy performed five times a day (preferably in a mosque) and oriented toward Mecca

Other synonyms of salaat include salah, salat.

salaat (noun)	salaah (noun)
the second pillar of Islam is prayer; a prescribed liturgy performed five times a day (preferably in a mosque) and oriented toward Mecca	the second pillar of Islam is prayer; a prescribed liturgy performed five times a day (preferably in a mosque) and oriented toward Mecca