sound wave

/ˈsaʊnd ˌweɪv/noun

sound wave is spelled S-O-U-N-D-W-A-V-E: 9 letters. As a noun, sound wave means “The longitudinal wave of pressure that is transmitted through any plastic material; audible sound” (English Wiktionary, September 2026). The plural of sound wave is sound waves.

How many letters and syllables are in sound wave?

Letters	9: S-O-U-N-D-W-A-V-E
In writing	a phrase: the frequency list counts single words
Wrong spellings searched	none measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce sound wave?

/ˈsaʊnd ˌweɪv/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-sound_wave.wav, Wikimedia Commons (author and licence on each file's page).

Words people confuse with sound wave

Also written: soundwave (one word or two).

Sources: English Wiktionary (homophones, alternative spellings).

Forms of sound wave

sound waves plural
soundwave

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does sound wave mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

1
The longitudinal wave of pressure that is transmitted through any plastic material; audible sound.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Sound wave in Spanish, French, German and Portuguese

In the sense longitudinal wave of pressure transmitted through any plastic material:

Language	Words
French	onde sonore, onde acoustique
German	Schallwelle
Portuguese	onda sonora
Spanish	onda sonora, onda acústica

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.