The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for duplicity is "deceptive thought, speech, or action.", the definition for negate is "To make invalid.", and the definition for camaraderie is "Spirit of friendship."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for frugal is "thrifty, cheap.", the definition for pretense is "False intention or purpose.", and the definition for beneficial is "Helpful."

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 implement is "to carry out or accomplish.", the definition for trove is "Valuable collection.", and the definition for anthology is "A collection of selected literary pieces."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for finite is "having definite limits.", the definition for epitaph is "Brief statement honoring a dead person.", and the definition for deferment is "The act of delaying."

The definition for fidelity is "State of being faithful." Used in a sentence: Unlike her fickle friend Benji, May Belle was known for her fidelity. The definition for fidelity is "state of being faithful.", the definition for periodic is "Occurring at regular intervals.", and the definition for refurbish is "To brighten or freshen."