Question: words that are in double?
Answer: bed. bod. bud. deb. del. doe. dol. dub. due. duo. eld. led. leu. lob. obe. ode. old. ole. oud. udo.
bedu. bled. blue. bode. bold. bole. dole. duel. leud. lobe. lode. loud. lube. lude.