9-Letter Words Containing: NI_

• first or lowest balcony

• intermediate floor just above the ground floor

• a large knife with one or more folding blades

• a dive in which the diver bends to touch the ankles before straightening out

• dive into the water bending the body at the waist at a right angle, like a jackknife

• change (a compound) by increasing the proportion of the electronegative part; or change (an element or ion) from a lower to a higher positive valence: remove one or more electrons from (an atom, ion, or molecule)

• dehydrogenate with oxygen

• impregnate, combine, or supply with oxygen

• convert (oxygen) into ozone