Jack-in-the-box
Word Forms of "jack-in-the-box" (4 forms)
Noun
| Form | Word | |
|---|---|---|
| Plural | jack-in-the-boxes | |
| Plural | jacks-in-boxes | |
| Plural | jacks-in-the-box | |
| Plural | jacks-in-the-boxes |
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.