English to English
1. decrease in size, extent, or range
The amount of homework decreased towards the end of the semester|The cabin pressure fell dramatically|her weight fell to under a hundred pounds|his voice fell to a whisper
2. lessen the authority, dignity, or reputation of
don't belittle your colleagues
3. To make smaller in any manner; to reduce in bulk or amount; to lessen; -- opposed to augment or increase.
4. To become or appear less or smaller; to lessen; as, the apparent size of an object diminishes as we recede from it.