A habit is a piece of clothing shaped like a long loose dress, which a nun or monk wears.
PHRASE
按习惯行事的人;习惯的奴隶
If you say that someone is a creature of habit, you mean that they usually do the same thing at the same time each day, rather than doing new and different things.
PHRASE
有/养成…的习惯;习惯于
If you are in the habit of doing something, you do it regularly or often. If you get into the habit of doing something, you begin to do it regularly or often.