兄

1. noun older brother; elder brother
2. brother-in-law (spouse's older brother or older sister's husband)

けい

1. pronoun, familiar, honorific, used by men, used in letters to address a male friend or superior you
2. suffix, familiar, honorific, used by men, used in letters after the name of a male friend or superior Mr; Mister
3. noun, orig. meaning older brother; elder brother

にい

1. suffix, familiar older brother; elder brother

このかみ also 首 · 氏上

1. noun, archaic eldest son
2. archaic older brother; older sister
3. archaic older person
4. archaic head of a clan; head of a region
5. archaic skilled craftsman