British & Australian, American & Australian

someone who seems to know everything and annoys other people by showing how clever they are.

No one likes him because he's such a know-all.

• a cattle market
• a cause celebre
• accept as gospel
• accept as gospel truth
• accept something as gospel
• accept something as gospel truth
• accidentally on purpose
• accidents will happen
• account for
• account for something
• a change of heart
• a change of pace
• a charley horse
• a cheap shot
• a chef d'oeuvre
• ache for
• ache for someone
• ache for something
• a chicken and egg situation
• a chink in armour
• a chink in someone's armour
• a chinless wonder
• a chip off the old block
• a chip on shoulder
• a chip on your shoulder