Summon vs. Invoke — What's the Difference?

To call together; convene

To call on (a higher power) for assistance, support, or inspiration

To request to appear; send for

To appeal to or cite in support or justification.

To order to take a specified action; bid

To call for earnestly; solicit

To bring to mind or remember. Often used with up

To summon with incantations; conjure.

To cause one to think of (something); evoke. Often used with up:"Badly cured hippie fur ... maté, and paraffin heating oil are the scents that summon up my remembrance of the late sixties" (Judith Thurman).

To resort to; use or apply

To bring into existence or readiness. Often used with up:"He summoned up a smile, though it seemed to take all his strength" (Colin Turnbull).

(Computers) To activate or start (a program, for example).

(transitive) To call people together; to convene.

(transitive) To call upon (a person, a god) for help, assistance or guidance.

(transitive) To ask someone to come; to send for.

(transitive) To solicit, petition for, appeal to a favorable attitude.

To order (goods) and have delivered

(transitive) To call to mind (something) for some purpose.

(transitive) To rouse oneself to exert a skill.

(transitive) To appeal for validation to a (notably cited) authority.

To call a resource by magic.

(transitive) To conjure up with incantations.

To summons; convene.

(transitive) To bring about as an inevitable consequence.

To impose such a fine or penalty, or to issue a notice thereof.

To cause (a program or subroutine) to execute.

(video games) A creature magically summoned to do the summoner's bidding.

To call on for aid or protection; to invite earnestly or solemnly; to summon; to address in prayer; to solicit or demand by invocation; to implore; as, to invoke the Supreme Being, or to invoke His and blessing.

Call, command, order en

Evoke or call forth, with or as if by magic;

A fine; a fee or monetary penalty incurred for breaking the law; usually for a minor offence such as a traffic violation.

Cite as an authority; resort to;

A notice of an infringement of the law, usually incurring such a penalty; a citation or ticket.

Request earnestly (something from somebody); ask for aid or protection;

To call, bid, or cite; to notify to come to appear; - often with up.

To give notice to, or command to appear, as in court; to cite by authority; as, to summon witnesses.

To call upon to surrender, as a fort.

Call in an official matter, such as to attend court

Ask to come;

Gather or bring together;

Make ready for action or use;