verb ·Rare ·Advanced level

Definitions

Verb

1. 1
   To draw chalk symbols in public places (such as the side of a building or a sidewalk) to show users of computers with Wi-Fi capability where a wireless network may be accessed.

Etymology

From war + chalk, modelled on war-dialing.

Related phrases

wi fi

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