charwoman vs cleaning lady

charwoman and cleaning lady both are nouns.

Word	Noun	Adjective	Verb	Adverb
charwoman	Yes	No	No	No
cleaning lady	Yes	No	No	No

As nouns, charwoman and cleaning lady are synonyms defined as:

Other synonyms of charwoman include char, cleaning woman.

charwoman (noun)	cleaning lady (noun)
a human female employed to do housework	a human female employed to do housework