| ALLOCHTHONS | • allochthons n. Plural of allochthon. | 
| ANACOLUTHONS | • anacoluthons n. Plural of anacoluthon. • ANACOLUTHON n. a sentence or construction lacking grammatical sequence.
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| AUTOCHTHONS | • autochthons n. Plural of autochthon. • AUTOCHTHON n. one sprung from the ground he inhabits, aborigine, native.
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| BENTHONS | • benthons n. Plural of benthon. • BENTHON n. the flora and fauna of the ocean floor, also BENTHOS.
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| DRUNKATHONS | • DRUNKATHON n. a prolonged drinking session. | 
| MARATHONS | • marathons n. Plural of marathon. • MARATHON n. a long-distance race.
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| PHONATHONS | • PHONATHON n. a telephone-based fundraising campaign. | 
| PYTHONS | • pythons n. Plural of python. • pythons n. (Bodybuilding, slang) Large and well-developed muscles in the upper arm.
 • Pythons n. Plural of Python.
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| RADIOTHONS | • radiothons n. Plural of radiothon. • RADIOTHON n. a marathon talk-in on radio.
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| SYNTHONS | • synthons n. Plural of synthon. • SYNTHON n. a constituent part in the synthesis process.
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| TALKATHONS | • talkathons n. Plural of talkathon. • TALKATHON n. a long talking session.
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| TELETHONS | • telethons n. Plural of telethon. • TELETHON n. an exceptionally long television programme to raise money for a charity or cause.
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| TRILITHONS | • trilithons n. Plural of trilithon. • TRILITHON n. (Greek) a stone monument of two upright and one transverse slab, also TRILITH.
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| ULTRAMARATHONS | • ultramarathons n. Plural of ultramarathon. • ULTRAMARATHON n. a footrace longer than a marathon.
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| WALKATHONS | • walkathons n. Plural of walkathon. • WALKATHON n. a marathon walking event.
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