adj

• (formal) Alien.
  "In Matthew's account, the law remains intact, as does virtually everything except that critical belief in Jesus as the Messiah (obviously no small thing), and this is not enough to make Matthew completely other from its Jewish origins."
• (formal or puristic) Different.
  "it is inherent, rather, in the revolutionary attempt of the West to externalize the idea of a source of meaning wholly other than what is embodied in human conventions and hierarchies."
• (obsolete) Left, as opposed to right.
  "A diſtaffe in her other hand ſhe had, / Vpon the which ſhe litle ſpinnes, but ſpils, / And faynes to weaue falſe tales and leaſings bad, / To throw amongſt the good, which others had diſprad."

adv

• (obsolete) Otherwise.
  "I durst, my lord, to wager she is honest, Lay down my soul at state; if you think other, Remove your thought;"

verb

• (transitive) To regard, label, or treat as an "other", as not part of the same group; to view as different and alien.
  ""Rican" is code for its homonym, "redskin," through which they othered this non-Mexican ethnic group."
• (transitive) To treat as different or separate; segregate; ostracise.
  "In this scenario, the young lady who had spoken had been othered by her peers and her response to my question had been dismissed as invalid despite the fact that she was alright."

name

• (philosophy, psychoanalysis) Radical alterity or otherness conceived or reified as a separate entity; “other people” altogether in their difference from oneself.
  "In its most fundamental dimension, sacrifice is a “gift of reconciliation” to the Other, destined to appease its desire. Sacrifice conceals the abyss of the Other’s desire, more precisely: it conceals the Other’s lack, inconsistency, “inexistence,” that transpires in this desire. Sacrifice is a guarantee that “the Other exists” […]"