/əˈkjuːtnɪs/ n.1.+of mind敏锐；洞察力
Everything he writes demonstrates the acuteness of his intelligence.从他的文笔可以看出他心思敏锐。
2.+of hearing, eyesight敏锐
As well as their incredible sensory acuteness, these dogs had a canine sixth sense.这些狗不但感官惊人地敏锐, 还有犬类动物的第六感。
3.+of problem, need严重性；迫切性
In the doctors' eyes the length of time you have lived with your problem somehow dilutes its acuteness.在医生眼里, 得病的时间越久, 其严重性就越是不强。
4.【医】+of illness紧急性
5.【数】+of angle锐角；狭窄