senior
A. -adjective
1. (in age) mayor
·he is senior to me by five years
formal usage es cinco años mayor que yo, tiene cinco años masculineánoun que yo
·Douglas Fairbanks Senior
·Douglas Fairbanks padre
·senior [pupils]
·los alumnos de los cursos masculineánoun avanzados
2. (in rank)
[position, rank] superior [partner, executive, officer] mayoritario (in length of service) de masculineánoun antigüedad
·he is senior to me in the firm
·es mi superior en la compañía
·senior [management]
·los altos directivos
B. -noun
1. (in age) mayor masculine and feminine
·he is my senior
·es mayor que yo
·he'noun my senior by two years
·es dos años mayor que yo, tiene dos años masculineánoun que yo
2. (in rank)   superior masculine and feminine, socioa masculine/feminine masculineánoun antiguoa
·he'noun my senior
·es mi superior
3. (school) alumno (m) / alumna (f)
(United States) estudiante masculine and feminine del último año
C. -compound
·senior citizen -noun   jubilado (m) / jubilada (f), persona (f) de la tercera edad
·senior high school -noun
(United States)   instituto (m) de enseñanza superior Spain, preparatoria (f) Mexico
·senior partner -noun socioa masculine/feminine mayoritarioa
·senior [school] -noun instituto (m) de enseñanza secundaria
·the Senior [Service] -noun
(British, Great Britain) la marina