Avast vs. Vast — What's the Difference?

Avast Software s.r.o. is a Czech multinational cybersecurity software company headquartered in Prague, Czech Republic that researches and develops computer security software, machine learning and artificial intelligence.

Very great in size, extent, or quantity.

Used as a command to stop or desist.

Very great in scope or import

(nautical) hold fast!; desist!; stay!.

An immense space.

Listen!; pay attention!

Very large or wide (literally or figuratively).

Cease; stop; stay.

Very great in size, amount, degree, intensity, or especially extent.

(obsolete) Waste; desert; desolate; lonely.

(poetic) A vast space.

Waste; desert; desolate; lonely.

Of great extent; very spacious or large; also, huge in bulk; immense; enormous; as, the vast ocean; vast mountains; the vast empire of Russia.

Very great in numbers, quantity, or amount; as, a vast army; a vast sum of money.

Very great in force; mighty; as, vast labor.

Very great in importance; as, a subject of vast concern.

A waste region; boundless space; immensity.

Unusually great in size or amount or degree or especially extent or scope;