| English thesaurus | |||
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| A numeric value, which has been calculated mathematically, is added to data to ensure that original data have not been altered or that an incorrect, but valid match has occurred. (Check digit control is effective in detecting transposition and transcription errors) | |||
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check : 26 phrases in 12 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Economics | 1 |
| Finances | 1 |
| General | 1 |
| Health care | 3 |
| Immigration and citizenship | 4 |
| Law | 1 |
| Microsoft | 8 |
| Non-governmental organizations | 2 |
| Taxes | 1 |
| Transport | 2 |