Synonyms of 'come up'
▷ See come
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If a situation or problem arises, it begins to exist or people start to become aware of it.
if a problem arises later in pregnancy
Something that happens occurs or is done without being planned.
We cannot say for sure what will happen.
Thesaurus for come up from the Collins English Thesaurus
If someone comes up or comes up to you, they approach you until they are standing close to you.