1. [verb] (transitive) To become too big or mature for some purpose.
2. [verb] (transitive) To leave some object, habit, belief ... behind, no longer need or use it, as one grows.
3. [verb] (transitive) To grow faster or taller than something or someone else.
4. [verb] Grow too large or too mature for; 'I have outgrown these clothes'; 'She outgrew her childish habits'.
5. [verb] Grow faster than.
