Flashing

Part of speech: adjective, noun, verb

Pronunciation: /ˈflæʃɪŋ/

Definitions

1. The act of emitting short bursts of brightness serves to catch the eye
2. Producing quick, intermittent bursts of light visible to observers ; showing something rapidly to gain notice or emphasize ; a thin metal layer installed on buildings to prevent water penetration
3. Giving off sudden flashes of light usually for signaling or decoration ; revealing or presenting information or visuals swiftly ; a protective metal flashing applied around joints or openings in structures

Etymology: "Flashing" is a plain formation: the verb "flash" with the suffix "-ing," which turns an action into a noun or adjective. The verb "flash" itself probably imitates a sudden burst of light, and its sense of a quick, brilliant gleam is the root of everything here. The adjective and noun uses both describe that same brief bright emission. The most unexpected branch is in building construction. Flashing is the thin sheet metal, traditionally copper or aluminum, fitted around roofs, chimneys and windows to keep water out. The name comes from the way these metal strips catch and reflect flashes of sunlight, so a practical waterproofing layer was named for its glint rather than its function.

Synonyms: shining, blinking, glimmering, flickering, sparkling

Antonyms: dull, dark, dim, unlit, bland