fitness 

The emphasis is on developing fitness through exercises and training.

He has a new fitness regime to strengthen his back.

 

sexual 

Girls generally reach sexual maturity two years earlier than boys.

His sexual orientation was a lot more gay than straight.

 

stressful 

She had a stressful job as a sales representative.

Parenting can be a stressful business.

 

obesity 

The study also demonstrated a direct link between obesity and mortality.

Obesity is a major risk factor in many diseases.

 

nicotine

After about three months, I was no longer addicted to nicotine.

Nicotine is a psychoactive drug.

 

bad-tempered 

My father, who had always been very self-controlled, became bad-tempered.

They walked in bad-tempered silence.

 

resolve

This merely strengthens our resolve to win the league.

I looked at the list and felt my resolve weakening.

 

relaxation 

Diet and relaxation are two important keys to good health.

A relaxation session may put you in a better frame of mind.

 

gum

chewing gum 

The sweet gum, sour gum, and some Australian eucalyptus trees are gum trees.

She was admonished for chewing gum in class.

 

weaken 

You can weaken the tea by adding water.

They watched her gradually weaken as the disease progressed.

 

robbery 

Police have ruled out robbery as a motive for the killing.

Last year there was a plague of robbery and housebreaking.

 

slippery

The clay court was slippery and he was unable to move freely.

The tiled floor was wet and slippery.

 

HIV(Human Immuno- deficiency Virus)

Both drugs slow the progression of HIV, but neither cures the disease.

All donated blood is screened for HIV.

 

AIDS (Acquired Immune Deficiency Syndrome)

The official number of people carrying the AIDS virus is low.

Sex education is also expected to help check the spread of AIDS.

 

SARS (Severe Acute Respiratory Syndrome)

No new SARS cases have been reported in the region.

Summer session was cancelled this year because of SARS.

 

immune 

I am immune from the disease, for I had it once.

The immune system is our main defence against disease.

 

fluid 

During fever a large quantity of fluid is lost in perspiration.

The plant exudes a sticky fluid.

 

inject 

We hope to inject interest into our party.

He needs to inject himself once a month.

 

injection 

It has to be given by injection, usually twice daily.

A new method of fuel injection was developed during the war.

 

spill

Utmost care must be taken not to spill any of the contents.

Tears began to spill out of the boy's eyes.

 

condom 

Air trapped inside a condom could cause it to break.

The complaint department at the condom company got an earful.

 

homosexual

He came out as a homosexual after his mother died.

This will very likely also be true of homosexual and bisexual relationships.