ball / bulb (as in a light bulb) / (slang, electronics) vacuum tube, valve / (baseball) pitch

stinking, ill-smelling, stink / odor, savor, fragrance, be fragrant / suspicious looking / glow, be bright

(astronomy, mythology) Earth; Terra

caesura (a pause or interruption)

class (in school)

a sudden change in the state of things resulting in a conclusion or resolution: all at once, all of a sudden

change all of a sudden, happen all at once

durability

nine

quickness, rapidity