stroke

A stroke is when blood stops coming into your brain.

Example: I had a stroke after running so hard.

A stroke is an action of hitting something lightly.

A stroke is the person who sets the speed in a rowing crew.

Example: After years of training he was made stroke in the Oxford University crew.

A stroke is something that happens without warning.

Example: She had a stroke of good luck playing cards and won 20 dollars.

If you stroke something, you touch something with the hand, and move your hand gently up it.

Example: She stroked his hair lovingly.