build castles in the air
"build-castles-in-the-air" is a 20-letter English headword indexed on PlainSpell.
The verdict
“build castles in the air” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 24
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To have any desire, idea, or plan that is unlikely to be realized; to imagine visionary projects or schemes; to have an idle fancy or a pipe dream; to daydream.
Corpus desk
Index EN-build-castles-in-the-air · build castles in the air · English
build castles in the air · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 24 letters
- VOW-8 8 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "B" 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.
| Property | Value |
|---|---|
| Headword | build castles in the air |
| Language | English |
| Part of speech | Verb |
| Letters | 24 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “build castles in the air” in English
Rare enough to double-check
build castles in the air is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "To have any desire, idea, or plan that is unlikely to be realized; to imagine visionary projects or schemes; to have an idle fancy or a pipe dream; to daydream.".
No generated misspelling entries exist for build castles in the air in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: The first term dates from the late 1500s. A variant, castles in Spain (or châteaux en Espagne), was recorded in the Roman de la Rose in the 13th century and translated into English around 1365. The correct English form is build castles in the air, spelled B-U-I-L-D- -C-A-S-T-L-E-S- -I-N- -T-H-E- -A-I-R.
Definition
- 1To have any desire, idea, or plan that is unlikely to be realized; to imagine visionary projects or schemes; to have an idle fancy or a pipe dream; to daydream.
Recorded use
Wiktionary examplesThese source excerpts show how build castles in the air appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Look you, Amanda, you may build castles in the air, "and fume, and fret, and grow thin and lean, and pale and ugly, if you please." But I tell you, no man worth having is true to his wife, or can be true to his wife, or ever was, or will be so.
If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.
Etymology
The first term dates from the late 1500s. A variant, castles in Spain (or châteaux en Espagne), was recorded in the Roman de la Rose in the 13th century and translated into English around 1365.
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.