discern

To perceive or recognise something, especially something subtle or not immediately obvious.

• discernment/dɪˈsɜːrnmənt/(n)洞察力
• discerning/dɪˈsɜːrnɪŋ/(adj)有鉴赏力的
• discernible/dɪˈsɜːrnɪbl/(adj)可辨别的

• discern a pattern
• discern the truth
• difficult to discern
• discerning taste
• barely discernible

1. 1.She could discern genuine enthusiasm from polite pretence within seconds of meeting someone. (perceive)
2. 2.The trend was barely discernible at first, but over time the data told a clear story. (able to be noticed)

• perceive/pərˈsiːv/— to become aware of through senses — broader
• detect/dɪˈtɛkt/— to discover the presence of — more analytical
• distinguish/dɪˈstɪŋɡwɪʃ/— to tell apart

from Latin "discernere" (to separate, to distinguish) — dis- (apart) + cernere (to sift, to judge)