Converse of object

• zap: It demands a great deal from the player but gives good value and is a refreshing change from zapping aliens.

• invade: Mysterious invading aliens who want to conquer our corner of the galaxy, present.

• blast: Playing games is not only the preserve of the younger generation, with seven per cent of the sample tackling tombs and blasting aliens!

Converse of subject

• abduct: Max doesn't believe he was abducted by aliens, I believe he was.

• kidnap: Odd that... Jason Kane: 20th century guy, kidnaped by aliens and taken to the future where he met and married Bernice.

Adjective modifier

• undocumented: Month undocumented aliens the risk of the needs of.

• non-resident: The United States does not tax non-resident aliens for any interest income or dividend income derived from the United States.

• illegal: I thought India was going to be an illegal alien.

• undesirable: I have known Sharon for 20 years and far from being an undesirable alien who should be deported she is a model citizen.

• invasive: Impact of man, disruption by invasive aliens, and the problems of conservation.

• hostile: How would you describe your music to hostile aliens?

Modifies a noun

• abduction: Look, I'm not making this up, it all fits the profile of alien abduction.

• invader: I knew from the moment I was crushed by the alien invaders that video games would always play a part in my life.

• invasion: Meanwhile the President of the United States has to contend with a possible alien invasion.

• spacecraft: The alien spacecraft sits on a desolate plain on a distant planet.

• spaceship: Level Four This is set in space, with the baddies including alien spaceships that appear to be totally made up out of tubes.

• visitation: Mr Cowie is not the first author to offer a theory of alien visitation nor will he be the last.

Used with adjective complement

• seem: The concept of handing their cash into a bank or building society in exchange for a slip of paper may seem alien to them.

Noun used with modifier

• enemy: There are no photographs of these " enemy aliens " .

Preposition: from

• planet: For the secular ufologists abductions were scientific examinations by aliens from other planets, for the post-secular ufologists the answer is very different.