fluke

"The fisherman cast his line into the lake. "

"The spilled milk was an unintended consequence of rushing to get ready for school. "

"The rain stopped fortuitously just as we were about to leave for the park. "

"It's improbable that she will finish the project by Friday. "

"The park bench had a triangular shape, perfect for two people to sit together. "

"The strong wind dislodged the bird's nest from the tree branch. "

"The implication of Sarah's late arrival was that she missed the important meeting. "

"a successful use of medicine;  a successful experiment;  a successful enterprise"

"The frequent occurrence of noisy construction near my house has made it hard to concentrate on my studies. "

"The parasitic capacitance in the circuit caused unexpected delays in the computer program's execution. "

"The biologist studied the trematode found in the pond water sample. "

"The airplane's propeller propelled it forward through the air. "