Final answer:
The word 'lucid' means clear and easily understood. A lucid account or explanation is well-organized, coherent, and easy to follow.
Step-by-step explanation:
The word 'lucid' as used in the sentence 'He gave a lucid account of the situation at hand' means clear and easily understood.
It implies that the person's account or explanation was well-organized, coherent, and easy to follow.
For example, if someone gives a lucid account of a complex scientific theory, it means they explain it in a way that makes it simple and comprehensible for others to grasp.