instant >> ˈɪnst(ə)nt
Definition: [adjective] happening or coming immediately.
Example: the offence justified instant dismissal
Definition: [adjective] urgent; pressing.
Example: an instant desire to blame others when things go wrong
Definition: [adjective] (in business letters) of the current month.
Example: your letter of the 6th instant
Definition: [adjective] of the present moment.
Definition: [noun] a precise moment of time.
Example: come here this instant!
Definition: [noun] a very short time; a moment.
Example: for an instant the moon disappeared
Definition: [noun] instant coffee.