highlight (strongly illuminated area in a drawing, painting, or photograph) / highlight (especially significant or interesting detail or event) / highlight (of hair)

to highlight (mark with a fluorescent marker)

(literary) they (about women or girls)

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) Female third-person singular pronoun; she, her, girlfriend

important, significant

importance, consequence, significance

part, section, segment, portion

reading / (figuratively) understanding of something, speculation about something

to read (look at and interpret written text) / to read (speak aloud written text) / to infer; to speculate / to count