surrogate
A. -noun sustituto (m)
(=substance, material) sucedáneo (m)
(British, Great Britain) (religion) vicario (m)
B. -adjective [substance, material] sucedáneo
·the army became his surrogate family
·el ejército se convirtió en su segunda familia
C. -compound
·surrogate mother -noun madre (f) de alquiler
·surrogate motherhood -noun alquiler (m) de úteros