| fungus(noun, agent, leaven, leavening) |
| foam(noun, verb, form, solid, mass) |
| leaven(noun, change, agent, mold, levity) |
| ferment(noun, change, agent, mold, levity) |
| froth(noun, verb, form, solid, mass) |
| lather(noun, verb, form, solid, mass) |
| spume(noun, verb, form, solid, mass) |
| suds(noun, verb, form, solid, mass) |
| barm(noun, mold, bubble, levity, foam) |
| catalyst(noun, change, agent) |
| leavening(noun, change, agent, mold, leaven) |
| head(noun, solid, mass, bubble, foam) |
| bacteria(mold, leaven, leavening) |
| bubble(noun, verb, form, solid, bubble) |
| cream(noun, verb, form, solid, foam) |
| scum |
| fizz(noun, verb, form, solid) |
| mildew |
| raising agent |
| surf(noun, bubble) |