Green’s Dictionary of Slang

nada n.

[synon. Sp.]

(US) nothing.

[US]L.W. Garrard Wah-to-yah and the Taos Trail 162: Me no want nada.
[US] in Merriam-Webster’s Collegiate Dict. (1998).
[US]E. Hemingway Winner take Nothing 23: It was all a nothing and a man was nothing too [...] He knew it all was nada y pues nada y nada y pues nada. Our nada who art in nada, nada be thy name [OED].
[US]W. Brown Run, Chico, Run (1959) 32: ‘What goes on here, Loco?’ [...] ‘Nada – nothing.’.
[US]P. Thomas Down These Mean Streets (1970) 47: [chapter title] If you ain’t got heart, you ain’t got nada.
[US]A. Maupin Tales of the City (1984) 22: ‘Nothing happened?’ ‘Nada. Zilch.’.
[US]C. Hiaasen Tourist Season (1987) 129: All this work and what do we have to show for it? Nada.
[US]A. Rodriguez Spidertown (1994) 67: A kid goes home and sees his pop working fifty hours a week to come home with nada while the kid makes more money on the street on his own working less.
[US]J. Lerner You Got Nothing Coming 113: A couple of ese fish are pulled out of the houses for questioning. They saw nada and heard less.
[US]L. Berney Gutshot Straight [ebook] ‘Thanks for nada’.
[UK]P. Baker Fabulosa 295/1: nada none.
Central Cee ‘The Bag’ 🎵 On the ’net, they chat, in the flesh, they don’t, they won’t say nada.

In phrases

for nada

(US) in no way, impossible.

[US]A. Steinberg Running the Books 82: A bitch like me can’t be stuck on chuck, the boss is lost, for nada.
nada to vada in the larder (n.)

(Polari) a small penis.

[UK]P. Baker Fabulosa 295/1: nada to vada in the larder a small penis.