Cases of word usage

1) a part of a shore covered with sand or pebbles (beach)

2) a low area of loose, dry sand near the coast (dune)

3) tiny, hard bits of stone, sand etc; the quality of courage and determination (grit)

4) a mixture of lime, sand and water used to hold bricks, stones etc together in building (mortar)

5) (an area of) loose, wet, deep sand which sucks down whatever tries to cross it (quicksand)