Definitions

1. noun

A general area or region, especially of time; approximately that time or place.

“She plans to meet him thereabout 3 PM.”

2. adverb

Approximately that time or at that place; roughly.

“The concert is thereabout to start, let’s take our seats.”

3. preposition

Approximately that time or at that place.

“The package will be delivered thereabout next week.”