IPA: /ðɛrəˈbaʊt/
KK: /ðɛrˈæbaʊt/
Used to indicate an approximate location, time, or number.
The meeting will start at 3 PM or thereabout.
Thereabout → The word is formed from "there" (from Old English "þær", meaning at that place) and "about" (from Old English "abutan", meaning around or near). The term "thereabout" refers to a location that is near or around a specified place.
Think of 'there' as indicating a specific place and 'about' as meaning nearby — together, they help you remember that 'thereabout' refers to something that is around that specific place.