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thumb|right|A rowlock on a rowing boat thumb|right|A rowlock, with a gate, on an outrigger used in Rowing (sport)|sports rowing.
thumb|right|A rowlock on a rowing boat thumb|right|A rowlock, with a gate, on an outrigger used in Rowing (sport)|sports rowing.
A rowlock (), sometimes spur (due to the similarity in shape and size), oarlock (American English) or gate, is a brace that attaches an oar to a boat. When a boat is rowed, the rowlock acts as a fulcrum for the oar.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).