KanjiJLPT N3
Together

together, both, neither, all, and, alike, with

Mnemonic

Two birds trapped in mud beat their wings in perfect unison. Only by pulling together at the exact same moment do they rip free, soaring side by side into the sky. Alone, the mud held each one down; together, their combined wingbeats conquered it.
Additional thoughts
Visualize two birds wing-to-wing, mired in thick mud, synchronizing every flap — the shared rhythm is what breaks them loose. Unity of effort equals freedom.
Quick recall
Birds stuck in mud sync their wings and escape only by working together.

Details

The keyword for 共 is together. This kanji conveys the idea of doing something jointly, in common, or in cooperation with others. It expresses the concept of sharing, mutual participation, or collective action, emphasizing unity and collaboration among people. It is often used to indicate that something is done communally or that multiple parties are involved in a shared endeavor.
On'yomi
きょう
Kun'yomi
とも、とも.に、-ども