| Date: | 1600-1700 |
| Language: | Late Latin |
| Origin: | , past participle of appretiare, from Latin ad- 'to' + pretium 'price' |
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ap‧pre‧ci‧ate S2 W3

1 [transitive not in progressive] to understand how serious or important a situation or problem is or what someone's feelings are [= realize]
appreciate the significance/importance/value of something
He did not fully appreciate the significance of signing the contract.
He did not fully appreciate the significance of signing the contract.2 [transitive] used to thank someone in a polite way or to say that you are grateful for something they have done :
Thanks ever so much for your help, I really appreciate it.
Thanks ever so much for your help, I really appreciate it.3 [transitive] to understand how good or useful someone or something is :
Her abilities are not fully appreciated by her employer.
I'm not an expert, but I appreciate fine works of art.
Her abilities are not fully appreciated by her employer.
I'm not an expert, but I appreciate fine works of art.4 [intransitive] technical to gradually become more valuable over a period of time [≠ depreciate]:
Most investments are expected to appreciate at a steady rate.
Most investments are expected to appreciate at a steady rate.