Difference between Depart and Sidetrack

DEPART vs SIDETRACK: NOUN

A going away; departure; hence, death.
Division; separation, as of compound substances into their ingredients.
The act of going away; departure.
Division; separation, as of a compound substance into its elements: as, “water of depart,”
A going away; departure.
Death.

An alternate train of thought, issue, topic, or activity, that is a deviation or distraction from the topic at hand or central activity, and secondary or subordinate in importance or effectiveness.
A smaller tunnel or well drilled as an auxiliary off a main tunnel or well.
Any auxiliary railroad track, as differentiated from a siding, that runs adjacent to the main track.
A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for unloading freight, or to allow two trains on a same track to meet (opposite directions) or pass (same direction); a railroad siding.
A short stretch of railroad track used to store rolling stock or enable trains on the same line to pass
A railroad siding.
A short line of rails branching off by a switch from the main line of a railroad, and either returning to it or not at the further end, for use in turning out, shifting rolling-stock, etc.; a siding.

Wander from a direct or straight course
To divert (a locomotive) on to a lesser used track in order to allow other trains to pass.
To divert or distract (someone) from a main issue or course of action with an alternate or less relevant topic or activity; or, to use deliberate trickery or sly wordplay when talking to (a person) in order to avoid discussion of a subject.
To sideline; to push aside; to divert or distract from, reducing (something) to a secondary or subordinate position.
To deviate briefly from the topic at hand.

To go away; leave.
To vary, as from a regular course; deviate: : swerve.
To go away from; leave.
To part; to divide; to separate.
To resign; to part with.
To quit this world; to die.
To pass away; to perish.
To forsake; to abandon; to desist or deviate (from); not to adhere to; -- with from
To die.
To go forth or away; to quit, leave, or separate, as from a place or a person; to withdraw; -- opposed to arrive; -- often with from before the place, person, or thing left, and for or to before the destination.

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.
To transfer to a siding from a main line of track.

Be at variance with
Depart for someplace
In law, to deviate in a subsequent pleading from the title or defense in the previous pleading.
To deviate; go back or away, as from a course or principle of action, authoritative instructions, etc.; desist.
To go or move away; withdraw, as from a place, a person, etc.
Be out of line with
To separate into parts; become divided.
To share; give or take a part or share.
To depart from; quit; leave (by ellipsis of the usual from).
[At the Savoy Conference (1661) the use of the word depart in the marriage service was objected to by the Nonconformist divines. It was therefore changed (in 1662) to do part, us in the present prayer-book.]
To separate; sunder; dispart.
To divide; separate into parts; dispart.
An abbreviation of department.
To die; decease; leave this world.
To separate from a place or a person; go a different way; part.

To put upon a side-track; shift from the main line of a railroad to a subsidiary one; shunt.
Figuratively, to divert to one side; turn aside from the proper or the practicable course.
To pass to a side-track; come to rest on a siding.

Set forth, Take off, Part, Set off, Vary, Digress, Sidetrack, Stray, Diverge, Straggle, Quit, Start, Go, Deviate, Leave

Misappropriate, Spur, Avert, Deflect, Detract, Highjack, Hijack, Divert, Distract, Railroad siding, Siding, Straggle, Stray, Depart, Digress

Departure, Take leave, Set out, Go away, Take off, Part, Set off, Vary, Stray, Diverge, Straggle, Quit, Start, Deviate, Leave

Intersected, Perforate, Derail, Drilling, Misappropriate, Spur, Avert, Deflect, Detract, Highjack, Divert, Distract, Straggle, Stray, Depart

When does GSRTC last bus depart from Baroda?
The females depart and territories may change hands.
Book a car for the date you depart.
Depart a comment under and let us know.
He and Ollie depart for the gardens together.
Lest we depart from Him and go astray.
To ask leave to depart; leave to depart.
Some domestic flights depart from the international terminal, and conversely, some international flights to Canada depart from the domestic terminals.
Depart ye, depart, go out from the midst of her; separate yourselves, ye that bear the vessels of the Lord.
The Chaldeans shall surely depart from us; for they shall not depart.

Ownership of the sidetrack and all industry is yet to be determined.
This action must not discourage or sidetrack you from achieving your Everest.
God is interested in that talent we tend sidetrack as not needed.
However, user must lease sidetrack to assure continued placement of cars desired.
The rest is just a sidetrack, though neither goal will be easy.
Crews quickly installed a sidetrack to route traffic around the wreck.
Capitalists sidetrack the women into clubs and make ladies of them.
The sinuous, supple twisting back of chiasmus can sidetrack desire.
My apologies for the sidetrack, that is important info!
Or am i completely on a sidetrack here?