tailgating; piggybacking through a locked door
Refers to the act of following someone through a secured door or gate without authorization, often in the context of building security or access control.
Unauthorized entry by tailgating has become a problem in office buildings.
To prevent tailgating at the security gate, please go through one at a time.
Standard kanji spelling for this term.
Alternate kanji spelling; 伴 also carries the meaning of accompanying.
Compound of 共 (tomo, 'together') and 連れ (tsure, 'companion'), with rendaku voicing. The exact origin is uncertain, but it likely emerged in modern security contexts.