Synonym: arouse, excite, gender, sex activity, sexual activity, sexual practice, sexual urge, sexuality, turn on, wind up. Similar words: sexy, sexual, sexually, have sex, sex drive, sexuality, homosexual. Meaning: [seks] 
n. 1. activities associated with sexual intercourse 2. either of the two categories (male or female) into which most organisms are divided 3. all of the feelings resulting from the urge to gratify sexual impulses 4. the properties that distinguish organisms on the basis of their reproductive roles. v. 1. stimulate sexually 2. tell the sex (of young chickens).
n. 1. activities associated with sexual intercourse 2. either of the two categories (male or female) into which most organisms are divided 3. all of the feelings resulting from the urge to gratify sexual impulses 4. the properties that distinguish organisms on the basis of their reproductive roles. v. 1. stimulate sexually 2. tell the sex (of young chickens). 
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121) And no, Bill, I wasn't talking about sex - you've got a one-track mind!
122) Young people need to awake to the risks involved in casual sex.
123) He is not most people's idea of a sex symbol.
124) It is illegal to discriminate on grounds of race, sex or religion.
125) We can offer a comfortable home to a young person of either sex.
126) She wanted to be regarded as more than just a sex object.
127) A lot more frankness is needed in sex education if we are to reduce the number of teenage pregnancies.
128) During the third month of pregnancy the sex of the child becomes determinable.
129) The new technique has been used to identify the sex of foetuses.
130) Despite his age, he still has a lot of sex appeal.
131) His latest book reflects the old preoccupations with sex and religion that typify much of his work.
132) The best way to avoid pregnancy was total abstinence from sex.
133) He admitted last week he paid for sex with a prostitute.
134) Several European governments have pledged to work together to crack down on child pornography and sex tourism.
135) She's sick of being seen as a sex symbol and wants to be taken seriously as an actress.
136) For me(sentencedict .com), nothing compares with the thrill of surfing - it's better than sex.
137) Alcohol abuse in men can cause loss of sex drive and reduced potency.
138) If you're going to have sex, make sure you take precautions.
139) He's got a one-track mind -- all he ever thinks about is sex!
140) The embryos were tested to determine their sex prior to implantation.
141) The school is very modern in its approach to sex education.
142) Sex before/outside marriage is strongly disapproved of in some cultures.
143) His attitude to sex is coloured by his strict upbringing.
144) Sex is an emotion in motion. Mae West 
145) Sex was never as neat as the movies made it. Real sex was messy. Good sex was messier. Laurell K. Hamilton
146) Everything in the world is about sex except sex. Sex is about power. Oscar Wilde
147) Sex is good, but not as good as fresh sweet corn. Garrison Keillor
148) Sex is full of lies. The body tries to tell the truth. But, it's usually too battered with rules to be heard, and bound with pretenses so it can hardly move. We cripple ourselves with lies. Jim Morrison
149) Seems to me the basic conflict between men and women, sexually, is that men are like firemen. To men, sex is an emergency, and no matter what we're doing we can be ready in two minutes. Women, on the other hand, are like fire. They're very exciting, but the conditions have to be exactly right for it to occur. Jerry Seinfeld
150) The difference between sex and love is that sex relieves tension and love causes it. Woody Allen