iron

The filled squares are the 2 vowels — 2 of 4 letters. In the size-ranked list, iron sits in the everyday tier.

Letters

43,903 words share the length

Syllables

2stress on the first

Anagrams

3noir, nori

One letter away

2icon, ikon

• adjectiveextremely robust
• nouna heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
• nouna golf club that has a relatively narrow metal head

The CMU Pronouncing Dictionary reads it as ay1 er0 n — 2 syllables, the stress on syllable 1.

2 words share everything from the last stressed vowel on — that is what counts as a rhyme here.

• gridiron
• andiron

3 other words use exactly these letters: noir, nori, inro.

• icon
• ikon

Same length, one position changed. <1% of the 3,903 words this long are a neighbour.

• 4 letter words3,903
• Starts I6,978
• Starts IR310
• Ends N
• 4 letters starting I

Tier: everyday. The tiers come from the English Speller Database and rank by list size, not by how often a word is used — see where the words come from.