to fill / to satisfy / to fulfill / to act in place of / substitute / sufficient / full

= + : Mnemonic symbol: a charger for your mobile phone. Chantal Chicken (chu) has to charge her mobile phone, but the only charger (充) is outside in front of the engine ((e)ng1). Without any better option she waits outside in the cold wind for her phone to charge until she gets a runny nose (允). Lacking tissues she has to blow her nose into her beret (亠).
sufficient; full / to fill / to serve as; to act as / to act falsely as; to pose as

充 character breakdown

"lid" radical in Chinese characters (Kangxi radical 8)

= + : Mnemonic symbol: 亠 looks like a beret. Tecumseh (t) is killing time in the Outhouse's kitchen (ou2) by playing a game. His goal is to blow a petal leaf (丶) into a beret (亠) by blowing air through a flute (一).
just / fair / to permit / to allow

= + : Sun Wukong (儿) has a runny nose (mnemonic symbol for 允) and is constantly blowing his nose in the encampment ((e)n3). Yu the Great (yu) is very annoyed and tells him that it is not allowed (允) to blow one's nose in the encampment. Instead she hands him a fake nose (厶) with which he is to hide his real nose.

Characters with 充 as component

to gather / to unite / to unify / whole

= + : The president (统) wants to unite (统) the country, so he sets up free mobile phone chargers (充) for everyone inside of the engine ((e)ng3). As soon as he plugged in the first few chargers there are already a silk worm (纟) and Tommy Turtle (tu) peacefully sitting next to each other to charge their phones.
ancient firearm / gun

Words with 充

to pose as sb / to act a part / imposture
to overflow (with riches) / replete
to serve as / to be a substitute for
to recharge (money onto a card)
rechargeable card / to recharge a card
to give sufficient consideration to
to fill (gap, hole, area, blank) / to pad out / to complement / (dental) filling / filled
to fill a post / to act as

Sentences with 充

充 currently does not appear in any sentence.