careful and persistent effort
Through diligence and hard work, she completed her research.
Vocabulary like diligence appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
identification; identifying the nature or cause of some phenomenon
division; being twofold; a classification into two opposed parts or subclasses
instructional; instructive (especially excessively)
distinguish; mark as different
shyness; lack of self-confidence
spread out widely
wander; lose clarity or turn aside from the main subject in writing or speaking
amateur without seriousness
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