Intracloud lightning; lightning which occurs within a cloud, resulting in the discharge of electricity between regions of the cloud. (Often, but not always, this takes the form of sheet lightning.)

(electronics) Initialism of three-dimensional integrated circuit.

(Philippines, games) freeze tag

Any type of sea ice not attached to land, drift ice. / An ice dam (ice jam), a blockage of ice in a river starting with an ice floe in the river. / An ice stream (ice flow), a type of fast moving glacier

A smooth, barely visible, and dangerously slippery film of ice, usually over a dark surface, such as rock or pavement.

Used other than figuratively or idiomatically: see break, the, ice. / (idiomatic) To start to get to know people to avoid social awkwardness and formality. / (idiomatic) To introduce conversation.

(sciences) A period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence of major polar ice sheets that reach the ocean and calve icebergs.

plural of ice pellet / Small hail, generally less than 5 mm (0.2 in) in diameter. / (chiefly Canada and US, meteorology) Sleet.

singular of ice pellets; a single pellet of sleet.

(idiomatic) In a dangerous, hazardous, or delicate situation; at risk.