Definitions

1. adverb

used to indicate that something is happening or done in connection with something else

“The contract will be signed therewith a non-disclosure agreement.”

2. noun

a phrase used to indicate that something is being done in connection with something else

“The terms of the agreement were discussed therewith a lawyer.”

3. conjunction

used to indicate that something is happening or done in connection with something else

“He will go to the meeting, therewith his boss will be present.”