pin; fastening pin
A pin used to hold things in place, such as a safety pin or a pin for sewing.
I fasten the cloth with a pin.
The pin came undone.
安全ピン is a safety pin, a specific type of 留め針 with a clasp.
Standard kanji spelling for a pin used to fasten things.
Abbreviated spelling; less common.
Alternate kanji spelling; 止める can also mean 'to fasten'.
Abbreviated alternate spelling; rarely used.
Compound of 留め (tome, 'fastening', from 留める 'to fasten') and 針 (hari, 'needle, pin').