Explain the misunderstanding of the phrase "look out" in the following situation: when someoneon the second floor was ready to pour water out of the window, he called "Look out!” to warnthe people outside in the street to go away. But the man on the first floor heard the col and stretched his head out of the window just in time to receive the water.
It happened not because the man on the first floor didn't know the linguistic item look out, but because he was unaware of the context of situation. The people in the street wouldn't make such a mistake. This shows extra-linguistic context can often exercise great influence on the meaning of words.
