You wouldn’t casually use a word...

CASUAL, adjective - "coming to pass without design in the person or persons affected; coming by chance".

Ones consent to any suggested word implies gambling on chance, while ignoring that which passes (inception towards death) designs (life).

unless you knew its meaning

ME'ANING, noun - "that which exists in the mind...though not directly expressed" aka suggested information, held onto by ones consent.

Meanwhile...KNOW, verb - "to perceive" aka perceivable inspiration aka that which direction impresses for each ones expression within.

signs and symbols that have supernormal powers.

The natural power underneath suggested symbols implies perceivable symmetry, and that for sign (showed by others) implies sight (as perceived by self).