A basic knot used to join two ropes of similar thickness; also called a flat knot. Common in sailing, camping, and everyday tying.
I tied the ropes securely with a reef knot.
Since a reef knot can come undone easily, use a different knot for critical situations.
本結び is another term for the same reef knot; こま結び is a less common synonym.
縦結び is a granny knot, which is similar but less secure and often tied incorrectly.
Common mixed kanji-kana spelling.
Rare kanji spelling using 小間 (small space).
Kanji spelling using 細 (fine/detailed).
The term こま結び likely derives from 細 (こま, fine/detailed) or 小間 (こま, small space), referring to the neat, compact nature of the knot. The exact origin is uncertain.