IPA: /ˈsɒljʊbəl/
KK: /ˈsɑl.jə.bəl/
Able to be dissolved in a liquid, especially water.
Salt is soluble in water, which means it can easily mix with it.
Soluble → It is formed from "solvable" (from Latin "solvere", meaning to loosen or dissolve) and the suffix "-ble" (meaning capable of). The word "soluble" means capable of being dissolved or loosened in a liquid.
Think of something that can be 'loosened' or 'dissolved' in a liquid — 'solvere' means to loosen, and '-ble' indicates capability.