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Guess and drop the right meaning:
 
Answer variants:
A piece of metal or other hard material curved or bent back at an angle for catching hold of or hanging things on
A movement of part of the body, especially a hand or the head, to express an idea or meaning
The study or use of the rules about how words change their form and combine with other words to express meaning
People who are always loyal to a particular group or organisation
1. Gesture \(=\)
  
2. Grammar \(=\)
  
3Faithful \(=\)
  
4. Hook \(=\)