See opaque 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.
5000 GRE Words (recognized prep compilation)Recognized
GregMat 960 GRE WordsRecognized
MajorTests SAT 1000Recognized
Each source is a real, checkable word list that contains opaque. We never claim an official exam-board list — none is published for the GRE, GMAT, or SAT.