1.hijack(noun):an act
Synonyms:carjack,commandeer
Antonyms:hijack,kipe
Example Sentence:to engage in such stealing.
2.hilarity(noun):cheerfulness
Synonyms:jaunty,jolly
Antonyms:gloomy,heavy-hearted
Example Sentence:He waved a cheerful salutation and hurried to his place beside the assistant.
3.leach(verb):to percolate
Synonyms:extract,filter
Antonyms:filtrate,impregnate
Example Sentence: Pitts had some skill as a leach, and the medicine-chest was in his care.
4.rifle(noun):one of the grooves.
Synonyms:grab,gut
Antonyms:offer,protect
Example Sentence: Achang inquired, as he returned his rifleto its resting-place.
5.stymie(noun):to hinder
Synonyms:thwart,balk
Antonyms:clear,upenlighten
Example Sentence:A stymie, is when the opponent’s ball is on the line of your own putt.