pentathlon

Spelling & Dictionary Insight

The English entry for pentathlon is 10 letters long, classified as anoun. Corpus data places it at rank #82,652 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

No misspelling variants are generated for pentathlon in our index, suggesting the orthography follows predictable English patterns.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Borrowed from Ancient Greek πένταθλον (péntathlon), from πέντε (pénte, “five”) + ἆθλον (âthlon, “contest”). By surface analysis, penta- + -athlon. Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is pentathlon, spelled P-E-N-T-A-T-H-L-O-N, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.