Tsukemono
Japanese Pickled Vegetables, Pickled Vegetables, Preserved Vegetables
noun
Pickled things are Japanese pickled vegetables! Or tsukemono if you've already been eating yummy pickled ginger, daikon, and umeboshi!
つけもの
You already learned 漬ける meaning "to pickle" so just take the る off there shove the け into the kanji. You read it still, but it's hiding. It probably shrunk in the pickling process. Stick some things (もの) on there are you know the reading! Not bad! By the way, sometimes you'll see this word spelled like 漬け物 too.
この漬物は誰が漬けたんですか。
Who pickled these tsukemono?