6th grade

to increase in number or amount

to make worse,
to anger or annoy.
annoyance,
a source of annoyance

to save by using carefully,
the saving or protection of something through careful use

to harm by contact with something undesirable.

the act of or sesult of contaminating.

to reduce.

severe

or using more than is required.

the quality of being wasteful.

A thing that costs more than one can afford.

careful in spending or using

something that is harmful or dirty.

danger.
to place indanger
dangerous.

continuous

supply
skill in dealing with difficult situations
able to deal with difficult problems

to replace one thing or person for another
something or someone that replaces another
acting in place of someone or something else.

to support.
to suffer.

necessary for continued life or prosperity.
full of lively spirit.
of the greatest importance.