See sustain in a sentence written about what you actually care about
Brevlex writes every example sentence around your interests, then schedules it with spaced repetition so it sticks. No generic textbook line — a sentence for you.
Israeli Psychometric English dictionary (Campus IL / NITE)Authoritative
Science Vocabulary ListAuthoritative
GRE Word List 4700 (recognized prep compilation)Recognized
Each source is a real, checkable word list that contains sustain. We never claim an official exam-board list — none is published for the GRE, GMAT, or SAT.