That is
| why
| that is | |
| gen. | das ist; das heißt; sprich; das heisst; das ist |
| social.sc. | das heißt |
| why | |
| gen. | aber ja; aber nein; warum; wozu; weshalb; wieso |
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| sprich; das ist (id est) | |||
| das heißt (id est) | |||
| nämlich | |||
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| das heißt (d.h.) | |||
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| das ist (id est) | |||
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| das heisst (id est) | |||
| English thesaurus | |||
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in other words (on the first floor, that is, the floor at street level); to be precise; to be specific; for example; to be more accurate; used to introduce or follow a clarification, interpretation, or correction of something already said (He was a long-haired kid with freckles. Last time I saw him, that is.  lexico.com) | |||
| i.e. | |||
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That is why : 312 phrases in 25 subjects |
| American usage, not spelling | 1 |
| Austrian usage | 2 |
| Business | 10 |
| Customs | 6 |
| Economics | 8 |
| Electronics | 1 |
| Figurative | 2 |
| Finances | 6 |
| Foreign trade | 35 |
| General | 164 |
| Informal | 11 |
| Insurance | 2 |
| International trade | 1 |
| Law | 34 |
| Mathematics | 2 |
| Medical | 1 |
| Metallurgy | 5 |
| Microsoft | 2 |
| Patents | 7 |
| Quotes and aphorisms | 1 |
| Rude | 1 |
| Slang | 1 |
| Social science | 2 |
| Taxes | 6 |
| Transport | 1 |