• obliterate (v.) destroy utterly; wipe out


- The memory was so painful that he obliterated it from his mind

  • permeate (v.) spread throughout; pervade


- The smell of diesel oil permeated the air.

  • intercom (n.) an electrical device allowing one-way or two-way communication


- The pilot's voice came over the intercom.

  • subtle (adj.) not obvious, and therefore difficult to notice


- I detected a subtle change in his attitude toward us.

  • zealously (adj.) having or showing zeal


- The detective was zealous in her pursuit of the kidnappers.