Nouns

(n)traila track or mark left by something that has passed“there as a trail of blood”, “a tear left its trail on her cheek”
(n)traila path or track roughly blazed through wild or hilly country
(n)lead1, track, trailevidence pointing to a possible solution“the police are following a promising lead”, “the trail led straight to the perpetrator”

Verbs

(v)drag, trail, get behind, hang back, drop behind, drop backto lag or linger behind“But in so many other areas we still are dragging”
(v)chase, chase after, trail, tail, tag, give chase, dog, go after, trackgo after with the intent to catch“The policeman chased the mugger down the alley”, “the fox chased the rabbit”
(v)trail, shackmove, proceed, or walk draggingly or slowly“John trailed behind his class mates”, “The Mercedes trailed behind the horse cart”
(v)trailhang down so as to drag along the ground“The bride's veiled trailed along the ground”
(v)trail, traindrag loosely along a surface; allow to sweep the ground“The toddler was trailing his pants”, “She trained her long scarf behind her”