Custom
Habit
noun, の adjective
I've learned to be accustomed to this. It has become my custom and habit.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
ツメをかむのは、私の悪い習慣の一つです。
Nail biting is one of my bad habits.
私は毎日ジョギングをすることを習慣にしています。
I have made a habit of jogging every day.
仕事の前にストレッチをすることは、生産性を高める良い習慣です。
Stretching before work is a good habit that can increase productivity.
「たばこ、止めたんじゃなかったの？」「まあ、ほら、『古い習慣はなかなかなくならない』って言うだろ。」
"I thought you quit smoking." "Well, they say old habits die hard."