o ‧ ver ‧ do /ˌəʊvəˈduː $ ˌoʊvər-/ BrE AmE verb ( past tense overdid /-ˈdɪd/, past participle overdone /-ˈdʌn/, third person singular overdoes /-ˈdʌz/) [transitive]
[ Word Family: verb : ↑ do , ↑ outdo , ↑ overdo , ↑ redo , ↑ undo ; noun : ↑ deed ≠ ↑ misdeed , ↑ do , ↑ doing ; adjective : ↑ done , ↑ overdone , ↑ undone ]
1 . to do something more than is suitable or natural:
Analysts believe that worries about the economy are overdone.
Use a few drawings and photographs, but don’t overdo it.
2 . overdo it to work too hard or be too active so that you become tired:
You mustn’t overdo it – if you're tired, just sit down and start again.
3 . to use too much of something:
I think I overdid the salt.