...if something baffles you, you cannot understand or explain it at all...

...to push someone gently, usually with your elbow, in order to get their attention..

...walk without lifting your feet properly off the ground...

...means "to drop sharply," like eagles that plummet toward earth, seeking prey, or school attendance that plummets when there is a flu outbreak...

...not willing to do something and therefore slow to do it...

To soar means more than just to fly; it means to rise swiftly,..

Something idle is not active. If your car is idling, it's running but not moving...

...to make something else seem better or more attractive when combining with it...

Something spontaneous happens when you're least expecting it...

When you throw a slumber party, you invite your friends to spend the night at your house...

...Sinuous means winding or curvy. If you get lost on a sinuous mountain path, you'll need a compass or a GPS...

...is the condition in which something happens...

... is something you rest your head on while you sleep. Or, during a slumber party, a pillow could be used as a weapon.

...Look closely at that branch or leaf — you might be able to spot a chameleon hiding...

...Something immediate is happening now or right away. If you're in immediate danger, you'd better run or call 911...

...Someone who is complacent has become overly content — the junk-food-eating couch potato might be feeling complacent about his health...

...Where’s the one place that bears go to hibernate and you go to watch the big game?...

...Intolerance — or an unwillingness to accept the beliefs or behavior of someone different from you...

...Anything genetic has to do with your genes and DNA. You inherited your mom's eye color because it's genetic...

...referring to the movement of large number of scientists or academics away from their own country...