What does "present perfect" mean?

A perfect tense that expresses action in the past (usually completed) with consequences in the present time.

Present perfect

Common synonyms include: auxiliary construction, compound tense, future, grammatical, imperfect, past.

noun

noun ·Rare ·Advanced level

Noun

1
A perfect tense that expresses action in the past (usually completed) with consequences in the present time. uncountable
2
a perfective tense used to express action completed in the present wordnet