suss

Từ điển Oxford Learners Wordfinder Dictionary

suss [suss susses sussed sussing] (also sus)BrE [sʌs] NAmE [sʌs] verb transitive, intransitive ~ (sb/sth) (out) | ~ that… | ~ how, what, etc… (BrE, informal)
to realize sth; to understand the important things about sb/sth
•I think I've got him sussed (= now I understand him).
•If you want to succeed in business you have to suss out the competition.
•He cheated on her for years, but she never sussed.
See also: ↑sus
Verb forms:

Word Origin:
1930s: abbreviation of ↑suspect, ↑suspicion.