common adj.
1 happening/found often
VERBS be, seem | become | remain
ADV. extremely, very | increasingly | fairly, quite These problems now seem fairly common.
2 shared
VERBS be
PREP. to This attitude is common to most young men in the armed services.
PHRASES have sth in common Jane and I have nothing in common (= share no interests, ideas, etc.). I have nothing in common with Jane. The two cultures have a lot in common (= have the same features, characteristics, etc.). | hold sth in common They hold the property as tenants in common (= they share it). | in common with Britain, in common with (= like) many other industrialized countries, has experienced major changes over the last 100 years.
3 showing a lack of education
VERBS be, seem, sound I wish you wouldn't use that word?it sounds so common.
ADV. very | a bit, rather, slightly I don't like Sandra. She seems a bit common to me.
You can also check other dicts: common (English, 中文解释 ), wordnet sense, Collins Definition