salah vs salat

salah and salat both are nouns.

Word	Noun	Adjective	Verb	Adverb
salah	Yes	No	No	No
salat	Yes	No	No	No

As nouns, salah and salat are synonyms defined as:

salah and salat: 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 salah include salaah, salaat.

salah (noun)	salat (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