Central and Main thing

Central noun - A thing or place that is of greatest importance to an activity or interest.

Main thing and central are semantically related in principal topic. In some cases you can use "Main thing" instead a noun "Central", when it comes to topics like key.

Nearby Words: center, centre, centralize, centralise, centrally

Central and main thing are semantically related in principal topic. Sometimes you can use "Central" instead a noun phrase "Main thing", if it concerns topics such as key.