i Register
In some senses, suspender is marked as US, British. Watch for register when choosing this word.
noun
Something or someone who suspends.
An item of apparel consisting of a strap worn over the shoulder and used to hold up trousers.
An item of apparel used to hold up a sock or (now especially) a stocking, such as a garter, or each of the fastening-straps attached to a corset or suspender belt.