Exam: TOEFL

Definition: The most pleasant or agreeable person or thing.

Example: She is the nicest person I know, always helping others.

Definition: A small detail or fine point that is often important in a particular situation, especially in manners or etiquette.

Example: She paid attention to the niceties of conversation to make a good impression.

Definition: A special place or position for something, often referring to a specific area of demand or a role within a larger system.

Example: The artist found her niche in creating sculptures for public spaces.

Definition: To place something into a specific position or role that is suitable for it.

Example: The artist decided to niche her work in the local art community.

Definition: A type of coin in the United States that is worth five cents, made from a mixture of nickel and copper.

Example: I found a nickel on the ground while walking to school.

Definition: To cover or coat something with a thin layer of nickel, a type of metal.

Example: The technician will nickel the surface of the metal to prevent rust.

Definition: A compound derived from niacin, often used in dietary supplements and skincare products for its beneficial effects on skin health and metabolism.

Example: Nicotinamide is commonly found in skincare products due to its ability to improve skin texture and tone.

Definition: A harmful substance found in tobacco that can cause addiction and is also used as a pesticide.

Example: Many people struggle to quit smoking because of the nicotine in cigarettes.

Definition: Relating to a specific type of chemical compound that is similar to nicotine and affects nerve fibers, often influencing muscle activity.

Example: The study focused on the nicotinic receptors in the brain and their role in addiction.

Definition: The process of an early embryo attaching to the wall of the uterus after fertilization.

Example: Nidation is a crucial step in the early stages of pregnancy.

Definition: In a clever and skillful way.

Example: She niftily solved the puzzle that stumped everyone else.

Definition: To worry or be concerned about small, unimportant things.

Example: She tends to niggle over the details of her work instead of focusing on the bigger picture.

Definition: A small or minor worry, complaint, or annoyance that is often not very important but still bothers someone.

Example: She had a niggle about whether she had made the right decision.