noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   The affixing of a label to potentially dangerous machinery to indicate why it has been shut down. To avoid accidents, only the person who affixed the label is authorized to remove it and restart the machinery. uncountable

   "lockout–tagout"

Example

More examples

"The machine has a warning placard reminding people to use lockout and tagout."

Etymology

Deverbal from tag out.

Related phrases

shut down

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.