ligule

"The botanist studied the different types of flowers in the school garden. "

"The security guard acted as the identifier, checking IDs to make sure only employees entered the building. "

"The junction of the two pipes caused a slight leak. "

"The waters of the lake were transparent until the factory dumped waste there."

"The students are developing their reading skills in their English class. "

"He examined the crime scene for clues."

"To explain a chapter of the Bible."

"The birds had built an amazing structure out of sticks and various discarded items."

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The shelf is projecting about a foot from the wall. "

"You should knock before you enter, unless you want to see me naked."

"The octopus uses its appendage, a tentacle, to grab food from the ocean floor. "