ADD - To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate. Hence: To sum up; to put together mentally.
ALE - An intoxicating liquor made from an infusion of malt by fermentation and the addition of a bitter, usually hops.
DAD - A father, a male parent.
DUD - A device or machine that is useless because it does not work properly or has failed to work, such as a bomb, or explosive projectile.
LAD - A boy or young man.
LED - Simple past tense and past participle of lead.
DEAD - No longer living.
DEAL - A division, a portion, a share.
DUAL - Characterized by having two (usually equivalent) components.
DUDE - A man.
DUEL - Arranged, regular combat between two private persons, often over a matter of honor.
LEAD - A heavy, pliable, inelastic metal element, having a bright, bluish color, but easily tarnished; both malleable and ductile, though with little tenacity. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic number 82, symbol Pb (from Latin plumbum).
DALE - A valley in an otherwise hilly area.
LAUD - Praise or glorification.
ADDLE - To earn, earn by labor; earn money or one's living. — Forby.
LAUDED - Simple past tense and past participle of laud.