1.
Wednesday; Wed.
The clipped form of 水曜日, used in schedules, timetables, and casual speech where the word is already understood to name a day of the week.
Shortened from 水曜日 by dropping 日. The full form is the default in careful speech and writing; the short form appears where space is tight or the context is obvious.
Common collocations
Usage
All seven days clip the same way (月曜, 火曜, 木曜, 金曜, 土曜, 日曜). Many shops and museums take their 定休日 on a Wednesday, so the word turns up often on signs and websites.