Pronunciation: [lˈat͡ʃkɪ] (IPA) 
The spelling of the word "latchkey" can be tricky due to its silent "t". The IPA phonetic transcription for this word is /ˈlætʃki/. The "a" is pronounced as "ae" and the "t" is silent, which can cause confusion for those unfamiliar with the word. The term "latchkey" refers to a key for a house or apartment that is hidden in a secret location for someone to use to gain entry when the occupants are not home.
Latchkey is a term that refers to a type of key used for unlocking a latch or lock, particularly one for an outer door of a house or building. More broadly, the term latchkey is often used to describe a child who is left unsupervised at home after school due to the absence of their parent or guardian. This type of child is often given a latchkey to access the house and is hence referred to as a latchkey child.
In the context of a key, a latchkey is typically a small metal object, often with a handle or grip, that is inserted into a latch or lock mechanism to release it and allow entry into a building. It is commonly used for traditional door locks with latches, such as those commonly found on residential homes.
When referring to a child, a latchkey child is one who returns home after school to an empty house, where there is no adult supervision. This situation usually arises when parents are working or otherwise unavailable during the time their child arrives home from school. Latchkey children are often given a house key, typically on a string or lanyard attached to their clothing, to let themselves into their homes and ensure their safety until a caregiver arrives.
The term "latchkey" has gained significance in discussions on child welfare and parenting, as it reflects the circumstances of children who spend a significant part of their day unsupervised.
The word "latchkey" originated in the late 19th century and is a combination of two words: "latch" and "key". "Latch", derived from the Old English "læccan", means a mechanical device used for fastening a door or gate. "Key", from the Old English "cǣg", refers to a small metal instrument used for unlocking or opening a door.
The term "latchkey" specifically referred to a key that could be used to operate a latch, allowing someone to enter a property when the door was locked. Over time, "latchkey" became associated with children who carried these keys to let themselves into their homes as they returned from school while their parents were still at work.
