son-in-law

/ˈsʌnɪnˌlɔː/

//ˈsʌnɪnˌlɔː// noun

"son-in-law" is a 8-letter English headword indexed on PlainSpell.

The verdict

“son-in-law” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The husband of one's child.

Corpus desk

Index EN-son-in-law · son-in-law · English

son-in-law · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for son-in-law
PropertyValue
Headwordson-in-law
LanguageEnglish
Part of speechNoun
IPA/ˈsʌnɪnˌlɔː/
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “son-in-law” in English

son-in-lawfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

son-in-law is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈsʌnɪnˌlɔː/. Rarity is why readers land here mid-draft. Gloss: "The husband of one's child.".

No generated misspelling entries exist for son-in-law in our index, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Middle English sone in lawe; equivalent to son + -in-law. The correct English form is son-in-law, spelled S-O-N---I-N---L-A-W.

Definition

  1. 1
    The husband of one's child.

Recorded use

Wiktionary example

These source excerpts show how son-in-law appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. 12 ¶ And the men said vnto Lot, Hast thou here any besides? sonne in law, and thy sonnes, and thy daughters, and whatsoeuer thou hast in the citie, bring them out of this place. 13 For we will destroy this place, because the crie of them is waxen great before the face of the LORD: and the LORD hath sent vs to destroy it. 14 And Lot went out, and spake vnt…

Etymology

From Middle English sone in lawe; equivalent to son + -in-law.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "son-in-law"?
"son-in-law" is spelled S-O-N---I-N---L-A-W. The IPA pronunciation is /ˈsʌnɪnˌlɔː/.
What does "son-in-law" mean?
As a noun, "son-in-law" means: The husband of one's child.
How do you pronounce "son-in-law"?
The IPA (International Phonetic Alphabet) transcription for "son-in-law" is /ˈsʌnɪnˌlɔː/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "son-in-law"?
From Middle English sone in lawe; equivalent to son + -in-law. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list