"Infer" and "ascertain" both mean to conclude or deduce. "Abstain" means to hold back from doing something. "Disperse" means to distribute or scatter. "Truncate" means to shorten or abbreviate. "Zest" means to season or make flavorful.

"Accolade" and "promote" both mean to support. "Condemn" means to blame or convict. "Undermine" means to weaken or cripple. "Glean" means to pick out or collect. "Nulllify" means to cancel or revoke.

"Propitiate" and "conciliate" both mean to appease or satisfy. "Provoke" means to make angry. "Pulverize" means to destroy or smash. "Recant" means to take back something said. "Summon" means to call to a place. 

"Acquiesce" and "concur" both mean to agree or approve. "Dissaude" means to talk out of doing something. "Abdicate" means to give up a right, position, or power. "Cajole" means to attempt to coax or flatter. "Distend" means to bulge or swell. 

"Renege" and "default" both mean to go back on one's word. "Nettle" means to provoke or upset. "Bemoan" means to express sorrow. "Embezzle" means to steal money, often from an employer. "Redress" means to change or rectify. 

"Descry" and "perceive" both mean to discover or behold. "Overlook" means to disregard or neglect. "Blandish" means to flatter or cajole. "Cajole" means to attempt to coax or flatter. "Dissemble" means to disguise or pretend.

"Digress" means deviate or move off topic, so "deviate" is the correct answer. None of the other answer choices are close in meaning to "digress": "compound" means make worse or to exacerbate; "evade" means avoid or escape; "expunge" means erase or get rid of; and "inflame" means enrage.

Perhaps you have heard the word “concur” used in the very short expression, “I concur,” meaning, I agree. The word literally means to run with. The “con-” prefix means with and is found in many words such as “concord” and “constant.” The “-cur” portion of the word is derived from the Latin for to run, as is found in words like “current” and “incursion.” Those who “concur” can be said to “run with each other” in the sense of “having ideas in the same direction.” The meaning is perhaps a bit stretched, but it will help you to remember it!

The word “expendable” literally means “able to be used” in the sense of “able to be used and then thrown away.” It does not necessarily mean that the item is cheap (though that might be the case). For example, consider the following: “Many packages for lunches have become expendable; people throw them away after using them instead of washing and retaining them.”

"Corroborate" means to validate or authenticate, so "validate" is the correct answer. None of the other answer choices are close in meaning to "corroborate": "execute" means to carry out a task, accomplish something, or kill someone who has been sentenced to death; "belittle" means criticize in a way that makes the person or thing being criticized seem unimportant; "debilitate" means incapacitate or disable; and "acquiesce" means to agree with some reluctance.