curve of the tip of a sword
Specialized term in swordsmithing; refers to the slight outward curve near the tip of a Japanese sword blade.
The curve of the sword's tip forms a beautiful line.
length of a bow
Archaic term for the length of a bow; now rarely used outside historical or archery contexts.
General term for a bulge or swelling; can refer to a physical protrusion or a rounded shape. Often used in compound words like ふくらはぎ (calf of the leg).
The length of the bow is recorded in the ancient document.
Please press down the bulge of the bag.
My calf hurts.
Kanji spelling using 膨 (swell); occasionally seen in older texts or sword-related contexts.
Kanji spelling using 脹 (expand); very rare and mostly historical.
Derived from the verb ふくらむ (to swell). The noun form ふくら refers to the resulting bulge or swelling. The kanji 膨 and 脹 both relate to swelling or expanding, but the word is now usually written in kana.