IPA: //sʌbˈsɛntəns//
KK: /sʌbˈsɛntəns/
A part of a larger sentence that can stand alone as a smaller sentence.
In the complex sentence, the subsentence provides additional information about the main clause.
Subsentence → It is formed from "sub-" (meaning under or below) and "sentence" (from Latin "sententia", meaning thought or opinion). The word "subsentence" refers to a clause or part of a sentence that is subordinate to the main clause, thus being 'under' the main thought.
Think of something that is 'under' ('sub-') the main thought or opinion ('sententia') — that's why a subsentence is a part of a larger sentence.