How many liters of water did you use to dilute the acid in the test tube?

It has to be diluted with water.

Homeopathic remedies contain nothing but water since the original substance has been diluted to the point where not a single molecule remains.

Samuel Johnson draws his own portrait as "a hardened and shameless tea drinker, who for twenty years diluted his meals with only the infusion of the fascinating plant; who with tea amused the evening, with tea solaced the midnight, and with tea welcomed the morning."

Urine diluted in water 1:10 is an excellent fertilizer.

In the terraforming of Venus, the atmosphere was diluted, oxygen was added, and carbon dioxide was reduced.

You have to dilute it with water.

The milk was diluted with water.

Can I use this solvent to dilute my sample?