noun
Refers to a U-shaped metal fastener driven into wood or other materials, similar to a staple used with a staple gun.
See also: ステープル
書類をまとめるのにまた釘を使った。
I used a staple to bind the documents together.
壁にポスターをまた釘で留めた。
I fastened the poster to the wall with a staple.
Loanword from English 'staple', often used in office contexts. また釘 is the native Japanese term and may be more common in hardware or construction settings.
Refers to a stapler (the tool), not the staple itself. また釘 is the fastener, while ホッチキス is the device that drives it.
Compound of また (fork/crotch) and 釘 (nail), describing the U-shaped fastener that resembles a forked nail.