What does dīligenter mean in Latin?

dīligenter, a adverb, means “diligently, carefully”.

How do you pronounce dīligenter?

In classical Latin, [diː.lɪˈɡɛn.tɛr]; in ecclesiastical (church) Latin, [di.liˈd͡ʒɛn.ter].

adverb

dīligenter (comparative dīligentius, superlative dīligentissimē)

Classical[diː.lɪˈɡɛn.tɛr]Ecclesiastical[di.liˈd͡ʒɛn.ter]

rationem diligenter conficere: to keep the accounts (day-book) carefully.
diligenter attendere (aliquid): to attend carefully.
liber accurate, diligenter scriptus: a carefully written book.
re diligenter considerata, perpensa: after mature deliberation.
perpolire, limare diligenter librum, opus: to polish, finish a work with the greatest care.
studiose (diligenter, enixe, sedulo, maxime) dare operam, ut...: to take great pains in order to...

dīlĭgenter,

I. adv., attentively, carefully, diligently, earnestly; v. diligo, P. a. fin.

From dīligēns + -ter, from the present active participle of dīligō (“to esteem, to love”).