Use the adverb thus in place of words like therefore or so when you want to sound proper.
Use thus interchangeably with words like consequently, ergo, hence, and just like that. For example, if you want to sound fancy you could say no one showed up for water aerobics, thus the class was cancelled. It had to be thus. Thus is also, rarely, a noun that means a good-smelling gum resin from trees that we don’t really use anymore.
(used to introduce a logical conclusion) from that fact or reason or as a result
in the way indicated
an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation