1. Maid (milk-maid, chamber-maid, nurse-maid, bar-maid)
2. Test (test-case, test-pattern, test-tube, test-pilot)
3. Law (law-suit, law-book, law-breaker, law-man)
4. Park (ball-park, theme-park, trailer-park, double-park)
5. Tiger (tiger-cat, tiger-lily, tiger-shark, tiger-moth)
BONUS: Pole (bean-pole, flag-pole, ridge-pole, may-pole, ski-pole)
Source…