Keyword
ninja
Info
FrequencyTop 1100-1200
Type
Jōyō 
?
KankenLevel Pre-2
Heisig642
Readings
しの
(47%)
にん
(36%)
す
(1%)
っす
(1%)
Composed of
edge (of a knife or sword)
heart
Mnemonic

A ninja sneaks up behind you, placing the edge of his sword against your neck. In that moment your heart stops. You already know it's over for you.

Used in kanji (3 in total)
admit
splashed dye pattern
hare's foot fern
Used in vocabulary (115 in total)
to creep in; to steal in; to sneak in
ninja; person trained in ninjutsu and employed for covert purposes in feudal Japan
to conceal oneself; to hide; to endure; to bear; to stand
Examples (55 in total)
That is not something one can easily sneak into.
So, does that mean someone snuck into that room first?
An ordinary person can never sneak in.