Final answer:
Time code contains a time stamp and word clock does not.
Step-by-step explanation:
The essential difference between time code and word clock is that time code contains a time stamp and word clock does not.
A time code is a sequence of numbers that provides a precise reference for synchronizing audio and video devices. It includes information about hours, minutes, seconds, and frames.
A word clock, on the other hand, is a clock signal used in digital audio systems to synchronize different devices. It ensures that all digital audio equipment is operating at the same sample rate.