50 learners practiced this character

The heart (忄) focuses solely on the bird (隹) — to think exclusively of one thing, meaning 'only' or 'but'.

He left home very early for fear of being late.
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Everyone else has arrived, only he hasn't come.
Everyone agreed, but he alone voiced opposition.
Only by studying hard can you achieve good results.
This is my only choice; I have to accept it.
This is the only way to solve the problem.