Refers to the upper edge or side of a boat's hull. 'Gunwale' is the technical nautical term.
He was sitting on the gunwale, fishing.
The side of the boat got wet from the waves.
Standard kanji spelling.
Mixed kanji-kana spelling, common in everyday writing.
Single-kanji form; less common and may be confused with other readings.
Compound of 船 (funa, 'boat') and 縁 (heri, 'edge, rim'), with rendaku voicing of heri to beri.