approximate

(ap-prox-i-mate)

nearly correct or exact

approximation

(ap-prox-i-ma-tion)

an estimate or figure that is not intended to be exact

Celebrate

(cel-e-brate)

to observe (a holiday or important occasion) in some special way

celebration

(cel-e-bra-tion)

to do something special or enjoyable for an important event, occasion, holiday, etc.

frustrate

(frus-trate)

to cause to feel angry or discouraged 

frustration

(frus-tra-tion)

 something that causes feelings of anger and annoyance

donate

(do-nate)

to give as a way of helping people in need

donation

(do-na-tion)

the making of an especially charitable gift

depress

(de-press)

 to make sad or discouraged

depression

(de-pres-sion)

1a feeling of sadness

2an act of pressing down

3a period of low activity in business with much unemployment

profess

(pro-fess)

 to declare openly  

profession

(pro-fes-sion)

an occupation (as medicine, law, or teaching) that is not mechanical or agricultural and that requires special education 

recess

(re-cess)

a brief period for relaxation between work periods

recession

(re-ces-sion)

a period of reduced business activity

 liberal

(lib-er-al)

(liber+al)

 not stingy

 liberty

(lib-er-ty)

(liber+ty)

freedom to do as desired

 liberate

(lib-er-ate)

(liber+ate)

 to set free

auctioneer

(auc-tio-neer)

(auction+eer)

a person who runs an auction

engineer

(en-gi-neer)

(engin-e+eer)

a person who designs and builds machinery or technical equipment : 

a person who studies or works in a branch of engineering

musketeer

(mus-ke-teer)

(musket+eer)

a soldier armed with a musket

anxious

(anx-ious)

afraid or nervous about what may happen

precious

(pre-cious)

greatly loved or valued

delicious

(di-li-cious)

giving great pleasure especially to the taste or smell