No, it isn't Watts if there's no reference. It's a ratio of powers. i.e. amplification or attenuation. To have an actual amount of power, you need to reference

No, it isn't Watts if there's no reference. It's a ratio of powers. i.e. amplification or attenuation. To have an actual amount of power, you need to reference it to some particular amount of power, like dBm for power-ratio-relative-to-milliwatt.