Concision is way less important than clarity.
For example, consider spelling a word. The briefest approach is to say the names of letters. But these are similar, often differing only in one phoneme. E.g., P and B differentiating sounds are both bilabial plosives, differing only in whether they are voiced. But people for whom clarity is important will use something like the NATO Phonetic Alphabet. There, you'd say "papa" and "bravo". [1] It is much less brief, but much more clear.