a.

1. 加強的；密集的
   an intensive bombardment

   密集轟炸

2. 精深的；透徹的
   an intensive course in English

   英語精讀課程

3. 特別護理的
   Intensive care in hospitals is given to the seriously ill.

   醫院對危重病人作特別護理。

4. 集約栽培的；精耕細作的
   intensive farming

   集約農業

5. 【語】增強語氣的

n.[C]

1. 加強器；增強劑
2. 增強語氣的字（或字首等）

adj.

1. very thorough or vigorous.
2. (of agriculture) aiming to achieve maximum production within a limited area. Often contrasted with extensive.
3. [in combination] concentrating on or making much use of something:
   computer-intensive methods.
4. Grammar  giving force or emphasis.
5. denoting a property measured in terms of intensity rather than extent.

n.