noun
Extended Net constellation
Archaic astronomical term; one of the 28 Chinese mansions, part of the Vermilion Bird (朱雀) group. Not used in modern everyday Japanese.
二十八宿の一つに「張」があり、朱雀の一部とされる。
One of the 28 mansions is 'Chō' (Extended Net), considered part of the Vermilion Bird.
suffix, counter
counter for bows, stringed instruments, curtains, sheets of paper, etc.
Used for objects that are stretched or spread out, such as bows, kotos, curtains, and sheets of paper. Attaches to numerals.
弓を三張買った。
I bought three bows.
カーテンを二張新調した。
I bought two new curtains.
The kanji 張 originally means 'to stretch' or 'to spread', which underlies both the constellation name (a net spread in the sky) and the counter for stretched objects.