Variant form of -er used in words ending with an abbreviation or (sometimes) a number.

One whose self-identity is in passive roles, such as experiencing and observing.

(baseball) Initialism of earned run. / (biology) Initialism of endoplasmic reticulum. / (computing) Initialism of entity-relationship. / (medicine) Initialism of emergency room.

Initialism of Elizabeth Regina (“Queen Elizabeth”). / (US politics) Initialism of Eleanor Roosevelt. / (US sports) Abbreviation of Erie (“Erie, Pennsylvania, USA”).

Pronunciation spelling of her.

(heraldry) Abbreviation of ermine.

(added to verbs) A person or thing that does an action indicated by the root verb; used to form an agent noun.

(added to a proper noun) Suffix denoting a resident or inhabitant of (the place denoted by the proper noun); used to form a demonym.

(obsolete, no longer productive) Suffix used to form the plural of a small number of English nouns.

Person or thing connected with.