my‧self S1 W1 / maɪself / 代词 [ reflexive form of ‘I’ ]

1 used by the person speaking or writing to show that they are affected by their own action :

I blame myself for what has happened.

I can look after myself.

I’m making myself a sandwich.

2

a) used to emphasize ‘I’ or ‘me’ :

Why do I always have to do everything myself?

They say it’s a beautiful place, but I myself have never been there.

b) used after ‘like’, ‘as’, or ‘except’ instead of ‘me’ :

No one is to blame except myself.

3 (all) by myself

a) alone :

I’d like to be by myself for a while.

b) without help from anyone else :

I painted the house all by myself.

4 not feel/be myself informal used when the person speaking does not feel well, or is not able to behave normally, for example because he or she is upset or ill :

I haven’t been feeling myself lately.

Sorry, I’m not myself today. I’ve had some bad news.

5 have something (all) to myself to not have to share something with anyone else :

Everyone else had gone out and I had the apartment all to myself.