[{"Bold_text": "noun", "List Items": ["Physics.surface resistance to relative motion, as of a body sliding or rolling.", "the rubbing of the surface of one body against that of another:Rubber on pavement has more friction than steel wheel on steel rail.", "dissension or conflict between people, nations, etc., because of differing ideas, wishes, etc.:Friction between family members can escalate during a heat wave, as extreme weather can cause tempers to fray.Synonyms: contention , antagonism , clash , dissidence , discord"]}]