Observation- A man of no observation hardly reaches achievement on his work.

Emphasize- Emphasizing in the essay is one of the most effective keys on writing.

Reactions- His stubborn reactions is the result of his parent's pampering.

Define- Vietnam and China should define the boundary between two countries.

Tersely- My professor tersely gave comments on our reports.

Breach- To rob the bank, criminals often make a breach in order to get through.

Riveted- Day after day, our riveted relationship gets more better.

Vigil- The nurse keeps vigil over a sick child