Let’s try to understand the difference between these two words.
practical (adjective): useful and suitable for a particular purpose
- I love your kitchen. It’s really practical. Everything is in the right place, and at the right height.
practicable (adjective): able to be done; can be put into practice
- Your idea about making a new car park is not practicable. There is not enough space.
Note that there are a few other meanings for “practical”.
People are often unsure about the difference between these two words. Indeed, they are very close in meaning.
to presume something (verb): to believe something to be true, but without being 100% sure
- I presume you’ll come to my party. (I’ll be surprised if you don’t come, but I’ll accept your decision.)
to assume something (verb): to take something for granted, to believe it without question
- I assume you’ll come to my party. (I expect to see you at my party. I will want to know why if you don’t come.)