Practicably is the adverb: in a way that can actually be done, or to the degree that is possible in the real situation.

Practicably這個字 is是 the adverb副詞，指 in a way that can actually be done用真正做得到的方式，or或 to the degree that is possible in the real situation依照實際情況所能達到的程度。

Official letters and contracts love as soon as (is) practicably possible — as soon as you reasonably can, given real limits, not the second the clock would allow in a perfect world. Health-and-safety English also uses so far as is reasonably practicable.

Official letters and contracts公文和合約 love最愛用 as soon as (is) practicably possible這個片語，意思是as soon as you reasonably can在合理範圍內盡快，given real limits考慮到實際的限制，not the second the clock would allow in a perfect world而不是理想世界裡分秒不差的那一刻。Health-and-safety English職業安全衛生的英文 also也 uses用 so far as is reasonably practicable這個說法。

It is formal. You will almost never hear it in casual chat.

It is它是 formal正式用字，you will almost never hear it in casual chat在平常閒聊裡幾乎聽不到。

Though actually, learners who already mix practicable and practical will mix practicably and practically too. Practically often means "almost" ("practically finished") or "in a practical way." Practicably does not mean "almost." If you write "the room was practicably empty," that is the wrong word; you wanted practically.

Though actually不過，learners who already mix practicable and practical已經會搞混practicable和practical的學習者 will mix practicably and practically too也會把practicably和practically搞混。Practically常常 often means "almost"意思是「幾乎」(比如"practically finished"「幾乎做完了」) or或 "in a practical way"「用實際的方式」。Practicably does not mean "almost"則不表示「幾乎」。If you write "the room was practicably empty"如果你寫「the room was practicably empty」，that is the wrong word那就用錯字了；you wanted practically你要的是practically。