What it means
ولوم (volume) is the everyday Persian word for sound volume. The volume knob on a speaker, the volume slider in YouTube, the volume buttons on the side of an iPhone, all ولوم. The English root sits on top of the native Persian word صدا (sedā), which still does heavy lifting too. The two coexist, but they split by context. ولوم is the tech word: you turn ولوم up or down on devices. صدا is the natural-language word: you raise or lower your صدا, you complain that the neighbor’s صدا is too loud.
The Pure Persian Movement registers بلندی صدا (bolandi-ye sedā, loudness of sound) as the official term for what ولوم names. Predictably, nobody says بلندی صدا in conversation; it lives in user manuals translated by committee.
When to use which
For devices, apps, headphones, and any digital audio interface, ولوم is the natural choice. For human voices, music quality, and ambient noise, صدا is correct. Mixing the two in one sentence is fine and common: ولوم رو زیاد کن، صدا نمیاد (volume-o ziād kon, sedā nemiyad, turn up the volume, no sound is coming through). Each word is doing its job: ولوم names the control, صدا names what comes out of it.
How to use it
volume-e gushi-am kheyli kame.
My phone’s volume is really low.
ولوم گوشیم خیلی کمه.
volume-o ziād kon, nemishnavam.
Turn up the volume, I can’t hear.
ولوم رو زیاد کن، نمیشنوم.
tu mahmuneh ye boroweh ye volume-eshun-o kam konand.
Could they turn their volume down in the party next door.
تو مهمونی بغلی یه ولومشون رو کم کنند.
Where it comes from
Volume entered Persian through consumer electronics in the second half of the 20th century: radios, stereos, televisions, then computers. The word arrived as a label printed on hardware (the dial that said VOLUME), so it spread by sight as much as by sound. Once it locked into device interfaces, it stayed there. Persian has the native word صدا for the underlying concept, but it never reached for a calque to replace the tech term, partly because the tech term itself names the control, not the phenomenon.
In our voice
Use ولوم for tech, صدا for everything else. Mix them freely in the same sentence. The Pure Persian alternative بلندی صدا is one to recognize on a Samsung manual, not one to speak.
References
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