Words that start with I

Icy iguanas ignite Indian ink in an igloo.

Something is inside-out if its inside is on the outside and its outside is on the inside. Quite often when you take your clothes off they end up inside-out. The rubber gloves in the picture are inside out.

Iis forInsomnia

If you have insomnia, you have trouble sleeping, which means you are tired during the day. Someone who has insomnia is called an insomniac. Insomniacs might have trouble falling asleep, staying asleep, or both. Many medications have insomnia as a side effect.

Iis forInstruct

You instruct someone when you tell them what to do in small, helpful steps. The man in the picture is instructing the woman. See also instructions.
Insulation is something that you put in the sides of a container to keep the temperature inside as steady as possible. Fridges have insulated walls to keep the inside cool, and most houses have at least the ceiling insulated to keep the inside cooler in summer and warmer in winter.
Insurance is something that you pay or put aside, usually to an insurance company, so that if something bad happens you are reimbursed for an agreed amount. For example, you might have an insurance policy on your car, so that if it is damaged beyond repair the insurance company gives you a new one.
An interview is a formal conversation, where one person (or a group of people) asks questions and the other person answers them. Interviews are typically something you go through to get a job, or if you are appearing on TV.
Intestines are part of your digestive tract. They are basically a long tube that runs from your stomach to your anus. The picture is of some pig intestines for sale at a market.
Something is intricate if it has many small parts, connected in a complicated way. The carving in the picture is intricately done.
An introvert is a person who feels emotionally drained in social situations and enjoys spending time alone in order to feel energized.
You investigate something when you look at it more closely or try and learn more about it. The cat in the picture is investigating a visitor.