KanjiJLPT N1
Instant

instant, namely, as is, conform, agree, adapt

Mnemonic

A footballer blasts the ball into the net. Before anyone can blink, the ref whips out a stamp and slams it on the scorecard — goal confirmed in an instant! No replay, no hesitation, just immediate validation the moment the ball crosses the line.
Additional thoughts
Picture the stamp slamming down with the same explosive speed as the kick — both happen so fast they feel simultaneous. The immediacy of stamping official approval mirrors the meaning of promptness and doing something right on the spot.
Quick recall
A footballer scores and the ref's stamp confirms it in an instant.

Details

The keyword for 即 is instant. This kanji conveys the idea of immediacy, doing something right away without delay. It carries the sense of "at once" or "on the spot," suggesting a direct and prompt response to a situation. It is also used in formal or literary contexts to mean "namely" or "that is to say," linking one thing immediately to another.
On'yomi
そく
Kun'yomi
つ.く、つ.ける、すなわ.ち

Used in kanji