1Tuesday, the day of the week that comes after Monday; commonly used when talking about schedules and plans.
図書館は火曜日が休みです。
The library is closed on Tuesdays.
来週の火曜日に会議があります。
There's a meeting next Tuesday.
彼女は毎週火曜日にヨガのクラスに通っている。
She goes to a yoga class every Tuesday.