The phrasal verb "yield up" is primarily used in more formal contexts, although it can occasionally appear in less formal speech. It generally means to surrender or reveal something, often something that is hidden, such as information or resources. For example, a treasure might "yield up its secrets," or a captive might "yield up information." The usage often involves a sense of unlocking potential or uncovering hidden aspects and can carry an emotional or dramatic undertone. While not as common in everyday spoken English, it is prevalent in literary, journalistic, and formal contexts where a slightly elevated style is desired. The term conveys a sense of value or importance attributed to what is being revealed or given up, highlighting its specific rather than casual use.
B2
UpperIntermediate
1. To surrender or give something that one holds, especially under pressure.
The old oak tree yielded up its last acorn.
The suspect eventually yielded up the stolen goods to the police.
2. To provide information, especially as a result of questioning or investigation.
After much questioning, the witness finally yielded up the crucial details of the event.
The research yielded up some surprising new information about climate change.