• ignite (v.) set on fire


- One match can ignite an entire forest.

  • abolish (v.) formally put an end to (a system, practice, or institution)


- My school has abolished final exams altogether.

  • pollute (v.) make dirty


- The Atlantic Ocean is in danger of becoming polluted.

  • adequate (adj.) as much as is needed; fully sufficient


- A bedroom, kitchen, and bath were adequate shelter for his living needs.

  • audible (adj.) able to be heard


- From across the room, the teacher's voice was barely audible.