verb “grind”
 infinitive grind; he grinds; past tense ground; past part. ground; ger. grinding
- to make something into smaller pieces by pressing and rubbing it against another surface Sign up to see the translation of definitions and examples into any language. 
 She used a mortar and pestle to grind the spices into a fine powder. 
- to wear away or shape something by rubbing it against a rough surface The machinist carefully ground the rough edges off the metal plate. 
- to move something with difficulty because it is rubbing against another surface The old car's gears ground loudly as it struggled up the steep hill. 
- to slide the bottom part of a skateboard or snowboard along a rail or edge Jake loves to grind on the edge of the skatepark's concrete ledge. 
- to dance very close to someone in a way that might look sexual At the club, they started to grind to the beat of the music. 
- to do the same action many times in a game to achieve a goal I had to grind for hours to level up my character in the game. 
noun “grind”
 singular grind, plural grinds or uncountable
- the process of making something into powder or making it sharp by rubbing She gave the mixture a grind to get a fine powder. 
- a job or task that is boring and takes a lot of effort Studying for exams can be such a grind. 
- a specific instance of pulverization of coffee beans I need a fine grind for my French press coffee. 
- a move in skateboarding or snowboarding where the board slides on a rail or edge Jake nailed a perfect grind on the rail at the skate park.