Amr
Formal or not Is the idiom " sneak up on something/someone" formal or not ?
May 5, 2015 12:55 PM
Answers · 3
2
No, it isn't. It is an informal expression. You could use it in everyday conversation and in some neutral contexts. It wouldn't be appropriate in an academic essay or business letter, for example.
May 5, 2015
Informal It is used when talking to your friends.
May 5, 2015
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