Stickiness or viscosity; the quality of being sticky (as in food or substances).
この納豆は粘りが強くて美味しい。
This natto has strong stickiness and tastes good.
糊の粘りが足りないと貼り付けに失敗する。
If the glue isn't sticky enough, the paste will fail to hold.
生地の粘りを出すためによくこねる。
Knead well to bring out the dough's elasticity/stickiness.
Tenacity; persistence — the quality of continuing to try and not giving up.
彼は粘りで最後に逆転した。
He came back at the end thanks to his persistence.
粘り強い交渉が契約成立の決め手になった。
Persistent negotiations were the key to closing the deal.
受験勉強では粘りが大切だ。
Persistence is important in exam study.