salat vs salah

salat and salah both are nouns.

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

As nouns, salat and salah are synonyms defined as:

salat and salah: 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 salat include salaah, salaat.

salat (noun)	salah (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