intensive (Adjective) — Characterized by a high degree or intensity; often used as a combining form. ex. "the questioning was intensive" ex. "intensive care" ex. "research-intensive" ex. "a labour-intensive industry"
intensive (Adjective) — Tending to give force or emphasis. ex. "an intensive adverb"
intensive (Adjective) — Of agriculture; intended to increase productivity of a fixed area by expending more capital and labour. ex. "intensive agriculture" ex. "intensive conditions"
intensive (Noun) — A modifier that has little meaning except to intensify the meaning it modifies. ex. "'up' in 'finished up' is an intensive"