thrash out vs hash out

thrash out and hash out both are verbs.

Word	Noun	Adjective	Verb	Adverb
thrash out	No	No	Yes	No
hash out	No	No	Yes	No

As verbs, hash out is a hypernym of thrash out; that is, hash out is a word with a broader meaning than thrash out:

thrash out: discuss vehemently in order to reach a solution or an agreement
hash out: speak with others about (something); talk (something) over in detail; have a discussion

Other hypernyms of thrash out include discuss, talk over.

thrash out (verb)	hash out (verb)
discuss vehemently in order to reach a solution or an agreement	speak with others about (something); talk (something) over in detail; have a discussion