Translation guide
A buckle is a fastener for belts, bags, or shoes. As a verb, it means to fasten with a buckle, or to bend/collapse under pressure.
The metal or plastic clasp used to fasten a belt, strap, bag, or shoe.
To secure or fasten something using a buckle.
The most natural way to say 'buckle up' or 'fasten the buckle'. Literally 'tighten the buckle'.
To bend, warp, or give way under weight, force, or stress. Often used for knees, metal, or structures.
Means 'to break' or 'to snap'. Used for bones, sticks, or things that bend and break. For knees buckling, it implies a sudden give way.
The loanword バックル only means the noun 'buckle'. To express the action of bending or collapsing, use verbs like 折れる, 曲がる, or へこむ. Saying 膝がバックルする is not natural Japanese.
The buckle on this belt is broken.
The buckle on the bag came undone.
A more general term for a metal clasp or fastener. Can refer to buckles, but also to other types of catches. Slightly more formal or technical.
The clasp is stiff and won't come undone.
A traditional Japanese term for a buckle or clasp, often used for obi (kimono sash) fasteners or historical items. Rare in everyday conversation.
This obi clip is shaped like an old-fashioned buckle.
Please fasten your seatbelt buckle.
I forgot to fasten the buckle on my bag.
Means 'to fasten with a buckle'. More descriptive, emphasizing the tool used.
This belt is the type that fastens with a buckle.
General verb for 'tighten' or 'fasten'. Can be used for seatbelts, belts, etc., without explicitly saying 'buckle'.
Fasten your belt.
My knees buckled and I fell.
The shelf buckled under the weight.
Means 'to bend' or 'to warp'. Less severe than breaking; implies deformation without snapping.
The rail buckled in the heat.
My knees buckled and I couldn't stand.
Means 'to dent' or 'to cave in'. Used for surfaces that buckle inward under pressure.
The car's hood buckled.
Means 'to sprain' or 'to give way' for joints like ankles or knees. Also used metaphorically for losing spirit.
My ankle buckled and I fell.