11-Letter Words Containing: OO

• conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end

• animal constituent of plankton; mainly small crustaceans and fish larvae

• characteristic of or suffering from kyphosis, an abnormality of the vertebral column

• heavy wood of various brazilwood trees; used for violin bows and as dyewoods

• tropical tree with prickly trunk; its heavy red wood yields a red dye and is used for cabinetry

• a book containing sheets of paper on which sketches can be drawn