Abbreviation of 火曜日 (かようび). Used in schedules, calendars, and casual writing.
See also: 火曜
The meeting is on Tuesday afternoon.
fire (second of the five elements)
In the context of 五行 (ごぎょう, the Five Elements), 火 represents the fire element, associated with summer, south, and the color red.
See also: 五行
In the Five Elements, fire symbolizes passion and growth.
fire; conflagration
heating power; thermal power · firepower
volcano
fire; conflagration
eruption; volcanic eruption
Tuesday
arson; setting fire
fire extinguishing; fire fighting
cremation
gunpowder; explosive powder
ignition; lighting; firing; setting off
ignition; catching fire; combustion · firing a blank cartridge; blank discharge · event firing; triggering
flame; blaze
gunfire; artillery fire
ignition; catching fire; setting on fire
sacred fire; sacred flame · Olympic flame; Olympic torch
fire prevention; fireproofing
firearms; guns
outbreak of fire; fire breaking out
ignition; catching fire
extinguishing a fire; putting out a fire; dying out of a fire
wartime fire; fires of war · war; wartime destruction; horrors of war
raging fire; conflagration
fireproof; fire-resistant
light; lamplight
pyroclastic flow
hellfire; flames of hell · raging fire; large fire · fire that consumes an evildoer
large fire; conflagration
red-hot iron · swords and guns; gunfire · violent temper; termagancy · gambler · lean tuna; red tuna meat
gunfire
The kanji 火 originally depicts flames. The reading か is the Sino-Japanese on'yomi, used in compounds and the day-of-week abbreviation.