0 quality of being suitable for a particular occasion or use -- 實用性
I bought these shoes for their practicality, not their appearance. 我買這雙鞋是因其實用而並非其樣式。
1 the quality of being able to provide effective solutions to problems -- 實用的,有效的;能解決問題的
Jonathan has demonstrated enormous practicality in his successful management of the store. 喬納森經營這家商店很成功,表現出非常強的執行能力。
2 the possibility of being put into practice -- 實踐性,可行性
Your suggestion is appealing in theory, but it lacks practicality. 你的建議理論上很吸引人,但不切實際。
3 the conditions that result from an idea becoming a real situation -- 實際情況,實際
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
再长的路,一步步也能走完,再短的路,不迈开双脚也无法到达。