1. Expunge (vb.) (= to prick) To erase, obliterate, destroy The criminal tried to expunge all the incriminating evidence before the police arrived.

2. Omniscient (adj.) Knowing everything If I were omniscient about everything, I wouldn’t have to come to school any more.

3. Panacea (n.) Remedy for all ills; a cure-all Some people think that Advil is the panacea for all pains.

4. Diffident (adj.) Shy, lacking self-confidence, modest Don’t be diffident! You can definitely do better!

5. Pungent (adj.) ( = to prick) Causing a sharp sensation, biting smell or taste (e.g., vinegar) (figuratively) caustic, poignant His friend’s pungent remarks made her lose self-esteem.

6. Temerity (n.) (= by chance, rashly) Reckless rashness, boldness, imprudence They adventured into the jungle with temerity, not caring for the danger that was in store for them.