The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for gruff is "rough or stern in manner or speech.", the definition for rancorous is "Marked by deep ill–will.", and the definition for polarize is "To break up into opposing groups."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for stifle is "to repress or discourage.", the definition for heinous is "Shockingly evil.", and the definition for methodical is "Performed in an orderly manner."

The definition for prune is "To reduce by removing excess." Used in a sentence: The candidate pruned his speech so he would not exceed the time limit. The definition for precept is "a general rule of action.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for curtail is "To make less."

The definition for commemorate is "To mark by a ceremony." Used in a sentence: Each year, the Franklins commemorate their anniversary by visiting the site of their first date. The definition for entangle is "to involve in trouble.", the definition for disdain is "Feeling of contempt.", and the definition for euphoria is "Feeling of great happiness."

The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for finite is "having definite limits.", the definition for implausible is "Unbelievable.", and the definition for rehash is "To discuss again."