1. ............ is an infinitesimal or very short space of time; a moment.

Instance

Instant

Inspired

Install

2. At ............, Wikipedia : Spam is severely undermined by the AfD-process.

that instant

this instant

these instant

those instant

3. ............ is the synonym of instant.

Forever

Lifetime

Infinity

Immediate

4. Just ............, the gust of air flying past his head.

at an instant

for an instant

to an instant

of an instant

5. Shells and sniper bullets still could end their lives ............ an instant.

in

of

at

to