1 veryhighly successful/skilled/intelligenthighly competitive/critical/sensitiveIt is highly unlikely that she'll be late.
2 at or to a high standard, level or amounthighly trained/educateda highly paid job
3 with admiration or praiseHis teachers think very highly of him (= have a very good opinion of him).She speaks highly of you.Her novels are very highly regarded.

ˈhaɪli
ˈhaɪli