One who admires another romantically but purposely remains anonymous to the extent that the subject of the admiration is unaware of the admirer's identity.

(manner) In a secure manner; without fear or apprehension; without danger

(of goods) Not new; previously owned and used by another. / (of a dealer) Dealing in such merchandise. / (figuratively) Indirect; from a secondary source; not firsthand.

In a used or previously-owned condition. / indirectly

(chemistry) in a coordination compound, the number of ions or molecules that are coordinated to the central metal ion; its coordination number

(baseball) The base opposite home plate in a baseball infield. / (singular only, US, colloquial) Touching a partner under his or her clothes, without having sex.

(baseball) The infield defensive player that stands between the first baseman and the shortstop, normally on the right field side of second base.

section / zone (designated area). / (geometry) part of a circle, extending to the center; circular sector

(cricket) The first replacement new ball in an innings; in Test cricket, usually taken after 80 overs.

(cricket) the session of a day's play between lunch and tea