On many (American) phone keypads, 1 is blank, 2 is A, or B, or C, 3 is DEF, 4 is GHI, 5 is JKL, 6 is MNO, 7 is PQRS, 8 is TUV, and 9 is WXYZ.
So for FLOWERS you'd see that the F is on 3, L is on 5, O is on 6, etc. to get 356-9377. Note that both R and S are on 7, they map to the same number, so different words are likely to all map to the same number, like "Roses" and "Ropes".
Companies sometimes use longer or shorter numbers: you might see a number written with left-padded numbers, like "1-800-1FLOWER", for which you'd dial 1-800-135-6937. You might also see longer words, like 1-800-ARRANGEMENTS..you could type in 1-800-277-2643 63687, but the extra letters would just go into the recipient's PBX (like dialing an extension) and get discarded.
So for FLOWERS you'd see that the F is on 3, L is on 5, O is on 6, etc. to get 356-9377. Note that both R and S are on 7, they map to the same number, so different words are likely to all map to the same number, like "Roses" and "Ropes".
Companies sometimes use longer or shorter numbers: you might see a number written with left-padded numbers, like "1-800-1FLOWER", for which you'd dial 1-800-135-6937. You might also see longer words, like 1-800-ARRANGEMENTS..you could type in 1-800-277-2643 63687, but the extra letters would just go into the recipient's PBX (like dialing an extension) and get discarded.