1
- a settled or regular tendency or practice, especially one that is hard to give up习惯：
this can develop into a bad habit
这可能会成为一种坏习惯
mass noun we stayed together out of habit.我们出于习惯待在一起。
1.1
- informal an addictive practice, especially one of taking drugs〈非正式〉瘾; 毒瘾：
a cocaine habit.
可卡因毒瘾。
1.2
- Psychology an automatic reaction to a specific situation【心理】习惯（指无意识的习惯反应）。
1.3
- mass noun general shape or mode of growth, especially of a plant or a mineral（尤指植物或矿物的）习性; 属性：
a shrub of spreading habit.
有蔓生习性的灌木。
2
- a long, loose garment worn by a member of a religious order（某一类宗教教派人士穿的）服装。
2.1
- short for RIDING HABIT.RIDING HABIT的简称。
2.2
- mass noun archaic dress; attire〈古〉衣服, 服装。
3
- archaic a person's bodily condition or constitution〈古〉体质; 体型。
短语
break（或 〈非正式〉kick）the habit
- stop engaging in a habitual practice改掉习惯, 戒除［毒］瘾。
词源
Middle English: from Old French abit, habit, from Latin habitus 'condition， appearance'， from habere 'have， consist of'. The term originally meant 'dress， attire'， later coming to denote physical or mental constitution.