Substract and Under

Under and substract are semantically related in answerable topic. In some cases you can use "Under" instead the word "Substract" as an adjective or an adverb, when it comes to topics like subordinate, lesser.

Under adverb - In or to a lower place.

Substract and under are semantically related in secondary topic. Sometimes you can use "Substract" instead the word "Under" as an adverb or an adjective.