| a. | 1. | Being three times ten; consisting of one more than twenty-nine; twenty and ten; |
| n. | 1. | The sum of three tens, or twenty and ten; thirty units or objects. |
| 2. | A symbol expressing thirty, as 30, or XXX. |
| Noun | 1. | thirty - the cardinal number that is the product of ten and three |
| Adj. | 1. | thirty - being ten more than twenty |
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