Words that start with I

An introvert is a person who feels emotionally drained in social situations and enjoys spending time alone in order to feel energized.

Invisible means you cannot see something with your eyes.

People most often use it to describe something that is very well hidden, or for effort that people don't notice. For example, "she was invisible around the office".

The person in the middle of the picture is invisible.

Iowa, abbreviated to IA, is a state in the mid west of the United States of America. The capital of Iowa is Des Moines.

An iPod is a portable digital music player. iPods are made by Apple.

The iris is the colored part of your eye. The iris is a muscle that opens and closes the pupil in the center of your eye, controlling how much light reaches the inside of your eye.

Something is Irish if it relates to Ireland.

An iron is a device that is used for flattening out wrinkles in clothes. Irons have a handle at the top and a flat, smooth, metal bottom that is heated up. Once the bottom is hot it is rubbed over your clothes to smooth them out. Irons work better if the clothes are very slightly damp so many irons have a spray or steam feature.
Old fashioned irons were made of solid metal, and you put them in a fire to heat them up. Modern irons are heated by electricity.
Iron is also a type of metal.

An ironing board is like a small table with a padded top, especially designed to make it easy to iron clothes on. Most ironing boards have legs that fold up, so they can be stored away flat.

An itch is an annoying, twingey feeling in your skin that you just have to scratch. Some itches are from touching something like poison ivy, some are from mosquito bites, and others just happen for no reason.

Ivy is a creeping plant that is commonly found climbing up the side of buildings or trees. Ivy is evergreen - there are other plants that people call ivy that are not ivy, and you can tell because they are deciduous.