thence vs therefore

thence and therefore both are adverbs.

Word	Noun	Adjective	Verb	Adverb
thence	No	No	No	Yes
therefore	No	No	No	Yes

As adverbs, thence and therefore are synonyms defined as:

thence and therefore: (used to introduce a logical conclusion) from that fact or reason or as a result

Other synonyms of thence include hence, so, thus.

thence (adverb)	therefore (adverb)
(used to introduce a logical conclusion) from that fact or reason or as a result	(used to introduce a logical conclusion) from that fact or reason or as a result
from that place or from there	as a consequence
from that circumstance or source