1 to stop having something that you had before -- يَفْقِد
2 to have less of something than you had before -- يَخْسَر
3 If you lose a game, the team or person that you are playing against wins. -- يَخْسَر
Chelsea lost by a goal.
They’re losing 3–1.
4 to waste something such as time or an opportunity -- يَفقِد
5 to stop feeling something -- يَفقِد الاهتِمام، الصبر، إلخ.
6 to become crazy -- يَفقِد (عَقله)