I agree with everything suggested.
Toning falls under the umbrella of, as Arshad mentioned, doing more reps but with lower weights. Eventually, after repeating this exercise, the body becomes to get defined and the more of it is performed, the more it falls between the grey area of strength training and conditioning, as some parts of the body starts to get defined.
Initially, the conditioning is limited to doing what you can with minimal exercises but doing more of it and as time progresses and the muscles start to get fuller, you pick up more reps of heavier weights and even though it is more of the same, on the other hand, it is also considered a variation of strength training.
A very good comparison. Strongest man doesn't necessarily have the best-looking body as compared to body-builders. Correct me on this, but it is easier to take a heavier man down rather than someone whose entire body is strength trained, from top to bottom. The legs function in the same manner as the upper body and it would require more energy to bring them down. Getting strong is about power-lifting, body-building is more focused on getting individual parts defined, even if they are not particularly powerful. Some people have a combination of both in their genes, and they accelerate faster than others in each of these departments.
True strongest guys don't always have the best looking bodies. Strength training is power-lifting.