係けい船せん柱ちゅうけいせんちゅうMeanings1nounbollard; mooring post; bittA short post on a dock or ship used to secure mooring lines. Technical term used in maritime contexts.船ふねを係けい船せん柱ちゅうにしっかりとつなぐ。Secure the boat firmly to the bollard.港みなとには新あたらしい係けい船