Words 150 to 180 . Grueling: Demanding or exhausting. This is a grueling experience . Serenity: A period of calm and quiet during which you might listen to some relaxing music or swap emails with friends.
Assure: Is to guarantee or promise. Self assurance means to be confident in one’s abilities.
Benevolent: Expressing good will or charity. Bill Gates is a very benevolent person.
1. Avail: To be of use for profit or advantage. I asked for his mercy, but to no avail. I hope to avail myself to students who are looking for a job.