1.  commemorate(v = verb.cognition) mark - mark by some ceremony or observation; "The citizens mark the anniversary of the revolution with a march and a parade"
is one way to celebrate, keep, observe
Derived forms noun commemoration₁, adjective commemorative₁
Sample sentences: Somebody ----s something

2.  commemorate(v = verb.cognition) remember - call to remembrance; keep alive the memory of someone or something, as in a ceremony; "We remembered the 50th anniversary of the liberation of Auschwitz"; "Remember the dead of the First World War"
Derived forms noun commemoration₁, adjective commemorative₁
Sample sentences: Somebody ----s something; Somebody ----s somebody

3.  commemorate(v = verb.cognition) immortalise, immortalize, memorialise, memorialize, record - be or provide a memorial to a person or an event; "This sculpture commemorates the victims of the concentration camps"; "We memorialized the Dead"
is one way to remind
Derived forms noun commemoration₂, adjective commemorative₁
Sample sentences: Somebody ----s something; Somebody ----s somebody; Something ----s somebody; Something ----s something

   To call to remembrance by a special act or observance; to celebrate with honor and solemnity; to honor, as a person or event, by some act of respect or affection, intended to preserve the remembrance of the person or event; as, to commemorate the sufferings and dying love of our Savior by the sacrament of the Lord's Supper; to commemorate the Declaration of Independence by the observance of the Fourth of July. [1913 Webster]
"We are called upon to commemorate a revolution."

commemorate, v.tr.
1 celebrate in speech or writing.
2 a preserve in memory by some celebration. b (of a stone, plaque, etc.) be a memorial of.

Derivative:
commemorative adj. commemorator n.

Etymology:
L commemorare (as COM-, memorare relate f. memor mindful)

VB  celebrate keep, signalize, do honor to, commemorate, solemnize, hallow, mark with a red letter, pledge, drink to, toast, hob and nob, inaugurate, install, chair, rejoice, kill the fatted calf, hold jubilee, roast an ox.

VB  remember, mind, retain the memory of, retain the remembrance of, keep in view, recognize, recollect, bethink oneself, recall, call up, retrace, look back, trace back, trace backwards, think back, look back upon, review, call upon, recall upon, bring to mind, bring to remembrance, carry one's thoughts back, rake up the past, have in the thoughts, hold in the thoughts, bear in the thoughts, carry in the thoughts, keep in the thoughts, retain in the thoughts, have in the memory, hold in the memory, bear in the memory, carry in the memory, keep in the memory, retain in the memory, have in the mind, hold in the mind, bear in the mind, carry in the mind, keep in the mind, retain in the mind, hold in remembrance, be in one's thoughts, live in one's thoughts, remain in one's thoughts, dwell in one's thoughts, haunt one's thoughts, impress one's thoughts, be in one's mind, live in one's mind, remain in one's mind, dwell in one's mind, haunt one's mind, impress one's mind, dwell in one's memory, sink in the mind, run in the head, not be able to get out of one's head, be deeply impressed with, rankle, recur to the mind, flash on the mind, flash across the memory, remind, suggest, prompt, put in mind, keep in mind, bring to mind, fan the embers, call up, summon up, rip up, renew, infandum renovare dolorem, jog the memory, flap the memory, refresh the memory, rub up the memory, awaken the memory, pull by the sleeve, bring back to the memory, put in remembrance, memorialize, task the memory, tax the memory, get at one's fingers' ends, have at one's fingers', learn at one's fingers', know one's lesson, say one's lesson, repeat by heart, repeat by rote, say one's lesson, repeat, repeat as a parrot, have at one's fingers' ends, have at one's finger tips, commit to memory, memorize, con over, con, fix in the memory, rivet in the memory, imprint in the memory, impress in the memory, stamp in the memory, grave in the memory, engrave in the memory, store in the memory, treasure up in the memory, bottle up in the memory, embalm in the memory, enshrine in the memory, load the memory with, store the memory with, stuff the memory with, burden the memory with, redeem from oblivion, keep the memory alive, keep the wound green, pour salt in the wound, reopen old wounds', tangere ulcus, keep up the memory of, commemorate, make a note of, jot a note, pen a memorandum.

VB  record, put on record, place on record, chronicle, calendar, hand down to posterity, keep up the memory, commemorate, report, write, commit to writing, reduce to writing, put in writing, set down in writing, writing in black and white, put down, jot down, take down, write down, note down, set down, note, minute, put on paper, take note, make a note, take minute, take memorandum, make a return, mark, sign, enter, book, post, post up, insert, make an entry of, mark off, tick off, register, enroll, inscroll, file, burn into memory, carve in stone.