What is Lie ?
Lie is (verb) 1. to say something which is not true She was lying when she said she had been at home all evening. He lied about the accident to the headmaster. (NOTE: in this meaning: lying – lied) 2. to be in a flat position; to be in a particular place Six soldiers lay dead on the ground. The dog spends the evening lying in front of the fire. There were bits of paper and cigarette packets lying all over the pavement. The city of Quito lies near the equator. (NOTE: lying – lay – lain) to lie in wait for someone to hide and wait for someone to come so as to attack him (noun) something which is not true That’s a lie! – don’t believe what he says. Someone has been telling lies about her. Antonym truth
source: Easier English, Student Dictionary Upper Intermediate Level