with sincerity; without pretense
"she praised him sincerely for his victory"
"was unfeignedly glad to see his old teacher"
"we are truly sorry for the inconvenience"
In accordance with the facts; truthfully, accurately.
"The report stated that the project was truly completed before the deadline, matching every detail of the final inspection log."
In plain English: Truly means something is actually real or exactly as you say it is.
"I truly believe that we can solve this problem together."
Usage: Use truly to emphasize that something happens exactly as stated or in complete sincerity, such as saying it is truly amazing rather than just slightly good. Avoid confusing this adverb of degree with "truly" used for emphasis on verbs like "to be," where the meaning remains focused on absolute truthfulness.
Truly comes from the Old English word meaning "faithfully," which was formed by adding a suffix to the root for true. The term traveled into modern English with this original sense of honesty and reliability intact.