sidetrack(n = noun.artifact) railroad siding, siding, turnout - a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass;
is a kind of railroad, railroad track, railway

   sidetrack(v = verb.motion) depart, digress, straggle - wander from a direct or straight course;
is one way to deviate, divert
Sample sentences: Something ----s; Something is ----ing PP; Somebody ----s PP

1.  To transfer to a siding from a main line of track. [Webster 1913 Suppl.]

2.  Hence, fig., to divert or reduce to a position or condition that is relatively secondary or subordinate in activity, importance, effectiveness, or the like; to switch off; to turn aside, as from a purpose.
"Such a project was, in fact, sidetracked in favor of the census of school children." [Webster 1913 Suppl.]

sidetrack, n. & v.
--n. a railway siding.
--v.tr.
1 turn into a siding; shunt.
2 a postpone, evade, or divert treatment or consideration. b divert (a person) from considering etc.

VB  alter one's course, deviate, depart from, turn, trend, bend, curve, swerve, heel, bear off, gybe, wear, intervert, deflect, divert, divert from its course, put on a new scent, shift, shunt, draw aside, crook, warp, stray, straggle, sidle, diverge, tralineate, digress, wander, wind, twist, meander, veer, tack, divagate, sidetrack, turn aside, turn a corner, turn away from, wheel, steer clear of, ramble, rove, drift, go astray, go adrift, yaw, dodge, step aside, ease off, make way for, shy, fly off at a tangent, glance off, wheel about, face about, turn to the right about, face to the right about, waddle, go out of one's way, lose one's way.