house of prayer vs place of worship

house of prayer and place of worship both are nouns.

Word	Noun	Adjective	Verb	Adverb
house of prayer	Yes	No	No	No
place of worship	Yes	No	No	No

As nouns, house of prayer and place of worship are synonyms defined as:

house of prayer and place of worship: any building where congregations gather for prayer

Other synonyms of house of prayer include house of God, house of worship.

house of prayer (noun)	place of worship (noun)
any building where congregations gather for prayer	any building where congregations gather for prayer