Synonyms of 'smile'
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If you say that someone is beaming, you mean that they have a big smile on their face because they are happy, pleased, or proud about something.
She beamed at her friend with undisguised admiration.
Thesaurus for smile from the Collins English Thesaurus
When you smile , the corners of your mouth curve up and you sometimes show your teeth . People smile when they are pleased or amused, or when they are being friendly .