The Clue
Matthew and Mark: Abbr. (3 letter answer)
The Answer
STS
Tags
Notes
The answer STS is seen frequently, appearing about once every 60 puzzles.
Related Clues
Aves.
Blvds.
Rds.
Rdwys.
Ave. crossers
Avenues: Abbr.
Aves.' kin
Elm, Maple, etc.
Kin of aves.
Map rtes.
Plat abbrs.
Relatives of aves.
A, B and C in D.C.
Block boundaries: Abbr.
Bourbon and others: Abbr.
Canonized ones: Abbr.
City grid: Abbr.
City ways: Abbr.
Fleet, Wall, etc.: Abbr.
GPS data: Abbr.
Holy ones: Abbr.
Mark and Anthony: Abbr.
Most letters in D.C.
Nicholas and others: Abbr.
Parts of P.O. labels
Sesame and Baker: Abbr.
Urban grid: Abbr.
Valentine and others: Abbr.
Wall and Fleet: Abbr.
Wall and Main: Abbr.
10th, 20th, 30th, etc., in N.Y.C.
Gp. honored on Nov. 1
Manhattan's crosstown arteries: Abbr.
Manhattan's east/west arteries: Abbr.
Parts of some grids: Abbr.
Peter, Patrick and Paul: Abbr.
Peter, Paul and Mary: Abbr.
Many figs. on stained-glass windows
They go around the block: Abbr.