From WordNet (r) 3.0 (2006):
trail
n 1: a track or mark left by something that has passed; "there
as a trail of blood"; "a tear left its trail on her cheek"
2: a path or track roughly blazed through wild or hilly country
3: evidence pointing to a possible solution; "the police are
following a promising lead"; "the trail led straight to the
perpetrator" [syn: lead, track, trail]
v 1: to lag or linger behind; "But in so many other areas we
still are dragging" [syn: drag, trail, get behind,
hang back, drop behind, drop back]
2: go after with the intent to catch; "The policeman chased the
mugger down the alley"; "the dog chased the rabbit" [syn:
chase, chase after, trail, tail, tag, give chase,
dog, go after, track]
3: move, proceed, or walk draggingly or slowly; "John trailed
behind his class mates"; "The Mercedes trailed behind the
horse cart" [syn: trail, shack]
4: hang down so as to drag along the ground; "The bride's veiled
trailed along the ground"
5: drag loosely along a surface; allow to sweep the ground; "The
toddler was trailing his pants"; "She trained her long scarf
behind her" [syn: trail, train]