Inhale

to breathe in something:

 She inhaled (the fresh air) deeply.

Gravel

very small, rounded stones, often mixed with sand:

Gravel covers the driveway.

Crunch

to crush hard food loudly between the teeth, or to make a sound as if something is being crushed or broken:

 She was crunching noisily on an apple.

 The gravel crunched underfoot as we walked up the path.

Gasp

to take a short quick breath through the mouth, esp. because of surprise, pain, or shock:

When he collapsed on stage, the audience gasped.

 "Help me!" he gasped.

Gargle

to wash your mouth or throat by holding liquid in your mouth, keeping your head back, and breathing out slowly through the mouth:

For a sore throat, gargle with warm salt water.

Render

to cause someone or something to be in a particular state:

New technology renders a computer obsolete in a year.

Nibble

to eat something by taking a lot of small bites:

You can nibble something by moving your teeth against it without eating it:

Fish were nibbling at their hands.

 Ben stopped nibbling his apple.

 Keep vegetables handy to nibble on.