acoustical
/əˈkuː.stɪk.əl/adjective
acoustical is an adjective meaning “Of or pertaining to hearing or acoustics” (English Wiktionary, September 2026). It is spelled A-C-O-U-S-T-I-C-A-L and has 4 syllables, and it appears about once in every 3 million words in written English (wordfreq, 2021 data).
What does acoustical mean?
adjective
- 1
Of or pertaining to hearing or acoustics.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce acoustical?
- /əˈkuː.stɪk.əl/
Acoustical has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-acoustical.wav, Wikimedia Commons (author and licence on each file's page).
How common is acoustical?
Acoustical appears about once in every 3 million words in written English, the 47,633rd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Acoustical in Spanish, French, German and Portuguese
In the sense of or pertaining to hearing or acoustics:
| Language | Words |
|---|---|
| French | acoustique |
| German | akustisch |
| Portuguese | acústico |
| Spanish | acústico |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.