Synonym: balk, defeat, deter, foil, forbid, frustrate, hamper, hinder, impede, inhibit, obstruct, oppose, prevent, prohibit, ruin, spoil. Similar words: stalwart, highway, northwest, southwest, worthwhile, war, warn, aware. Meaning: [θwɔrt /θwɔːt] 
n. a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat. v. hinder or prevent (the efforts, plans, or desires) of.
n. a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat. v. hinder or prevent (the efforts, plans, or desires) of. 
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31) Hypothetically, such drugs could be incorporated into a topical microbicide that would thwart sexually transmitted chlamydiae.
32) Police efforts to thwart a feared attack triggered a disruptive , security clampdown across the country.
33) The Everton keeper needed all his courage to thwart a charging Vinny Jones in full flow.
34) She intends to thwart his plans, and be revenged on him.
35) Rain clouds hovered, but did not thwart, the 135th space shuttle launching on Friday, which drew one of the largest crowds in years to the Kennedy Space Center.
36) Yahoo Inc. is making a last - ditch effort to thwart the hostile takeover by Microsoft Corp.
37) Analysts of small business recognize that several economic factors tend to thwart this business form.
38) He sat down and, clinging to the thwart, began to sob quietly.
39) He made the fish fast to the bow, the stern and to the middle thwart.
40) I dropped upon the thwart again , none too soon , for I was near overboard.
41) For nine could thwart this evil trick with just some quick arithmetic.
42) Always alert to potential attacks and thwart them before they happen.
43) The cook's head was on a thwart(sentencedict.com/thwart.html), and he looked without interest at the water under his nose.
44) Please don't thwart him , or he will be killing the ceil .
45) The some people brushes teeth the elephant pulls to saw, and also be thwart brush.