noun
plural straws
[noncount] :the dry stems of wheat and other grain plants
[count] :a single dry stem of a grain plant
[count] :a thin tube used for sucking up a drink
clutch/grasp at straws
to try to solve a problem by doing things that probably will not help
draw straws
straw in the wind
a sign of what might come in the future
the final/last straw
or the straw that breaks/broke the camel's back
the last in a series of bad things that happen to make someone very upset, angry, etc.