discord

noun4

1. •
   Lack of concord, agreement, harmony; disaccord.

   • A false witnesse that speaketh lies; and him that soweth discord among brethren. — 1611
2. •
   Tension or strife resulting from a lack of agreement; dissension.
3. •
   Any harsh noise, or confused mingling of sounds.

   • […] For a Discord it selfe is but a Harshnesse of Diuers Sounds Meeting. — 1631
4. •
   An inharmonious combination of simultaneously sounded tones; a dissonance.

verb2

1. •
   (rare) To untie things which are connected by a cord.
2. •
   (no longer used) To disagree; to fail to agree or harmonize; clash.

   • […] Sometimes the one Iarring and discording with the other, and making a Confusion; […] — 1631

noun2

1. •
   (informal) A Discord server.
2. •
   (informal) A Discord account.

   • Most days, she falls asleep with her Discord on; while some days, she barely even sleeps at all. — 2022