Expunge (vb.)• To erase, obliterate, destroy

• The criminal tried to expunge all the incriminating evidence before the police arrived.

Omniscient (adj.)• Knowing everything

• If I were omniscient about everything, I wouldn’t have to come to school any more.

Panacea (n.)• Remedy for all ills; a cure-all

• Some people think that Advil is the panacea for all pains.

Diffident (adj.)• Shy, lacking self-confidence, modest

• Don’t be diffident! You can definitely do better!

Pungent (adj.)• Causing a sharp sensation, biting smell or taste

• (figuratively) caustic, poignant

• His friend’s pungent remarks made her lose self-esteem.

Temerity (n.)• Reckless rashness, boldness, imprudence

• They adventured into the jungle with temerity.