One who ardently admires
A man who courts a woman
One who admires a person or thing
"It looks like you've got an admirer," Alex said, chuckling.
In the kitchen Elisabeth teased, "Seems you have an admirer out there."
Wren was an enthusiastic admirer of Bernini's designs, and visited Paris in 1665 in order to see him and his proposed scheme for the rebuilding of the Louvre.
He was a great admirer of Galen; and in his writings he protests emphatically against quackery and the superstitious remedies of the astrologers.
Montmorin was a devoted admirer of Necker, whose influence at the court he was mainly instrumental in maintaining.