verb- to help grow; to feed 

A gardener's job is to nourish the plants.

Verb- to restrain; to keep someone from doing something.

The dogs were shackled so they couldn't get out of the yard.

Adjective- unsuccessful

It is futile to bet that the moon is made of cheese.

verb- to search for or travel with the purpose of discovery

John went to Alaska to explore for gold.

verb- to fill completely;to study in a hurry

The hungry guest crammed half a turkey into his mouth.

verb- to pull or turn suddenly; to twist or sprain.

noun- a tool used for holding or turning an object.

I wrenched my wrist while I was using the wrench on my bicycle.

noun- a person who goes over to the other side; a traitor

Troy Aikman might be called a turncoat if he went to play for the Redskins.

verb- to perform before an audience

It took an hour for Helen to recite her poem to her mom.

verb- to gather together facts from different sources

The fourth graders compiled a list of overused words.

verb- to keep from going on; to delay

Our plane was detained because of a lightning storm.

noun- relationship between organisms and the environment

We had to write a paper about the effects of pollution and the ecology.

noun- a continued action of a force

The hurricane formed because of the low pressure in the Gulf.