This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Architecture A molding between the upper part of a column and the projecting part of the capital.

n. Informal The act or practice of amorously kissing and caressing.

v. Present participle of neck.

n. A behavior among male giraffes where they hold combat for social dominance using their necks as weapons.

n. A neckmould.

n. Same as neckmold.

n. In arch., the hypophyge or moldings often intervening between the projecting part of the capital of a column and the vertical part or shaft, as the annulets of the Doric capital: often used as a synonym of neck, though strictly a column may have a neck, but no necking. See cuts under capital and column.

n. A neckhandkerchief or necktie.

n. affectionate play (or foreplay without contact with the genital organs)

n. the molding at the top of a column

"A small (1/2 BLOCKQUOTE square) park near our house, known during the rest of the week as a favorite for necking, is transformed into a magic wonderland of food (raw and cooked), clothing, furniture and junk."

moulding    molding   

neckmold   

neck