to add a shim
- phrasal verb
- Specialized
- When installing the window, the carpenter added a shim for a perfect fit.
Examples
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You may need to add a shim if the floor is uneven.
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When the table wobbled, I decided to add a shim underneath one leg to stabilize it.
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To keep the shelf level, I had to add a shim under one end.
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Can you add that shim to the structure?
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Why did the contractor add a shim to the wall?
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To keep the shelf level, I had to add a shim under one end.
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You may need to add a shim if the floor is uneven to ensure proper alignment.
Synonyms
To put something firmly in a chosen place, often for machines or heavy equipment
To put a thin piece of material between parts to fill a gap and make them level
Antonyms
How Level
- Specialized
Surface Forms
Morphology
The phrase maps directly from the literal 'shim' (a thin piece added to make parts fit) combined with 'add', so a learner who knows those words can infer the idea of inserting a small element to make things work. However, the computing sense (a small compatibility layer of software) is a technical, metaphorical extension of the physical object and requires domain knowledge, so the relation is only partly predictable without exposure.
Etymology
Add a shim comes from builders who slide a thin piece of wood or metal called a shim under a shelf, window, or piece of furniture to fill a gap and make it level. So, add a shim means 'to make a small adjustment' or 'to correct the fit' so things sit or work straight.