noun
a person who travels from place to place mending metal utensils
verb
attempt to repair or improve something in a casual or desultory way
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The tinker repaired the broken watch with precision and skill.
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My uncle likes to tinker with old cars in his spare time.
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I'm just going to tinker around with this new software and see what happens.
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She had a tendency to tinker with people's emotions, never fully committing to a relationship.