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- pronunciation:
- tuhch
ston
- features:
- Word Combinations (noun)
| part of speech: |
noun |
| definition 1: |
a test or standard by which to evaluate the worth of something.
She was tired of her brother's performance being the touchstone by which her performance was always measured.- synonyms:
- standard
- similar words:
- criterion
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| definition 2: |
a hard, black, fine-grained stone, such as jasper or basalt, against which gold and silver were formerly rubbed to test their quality.
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| related words: |
model, type |
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