Unders is a word that means undergarments or underwear. Synonyms for the word unders include underclothes, undergarments, underpants, briefs, panties, boxers, knickers, undershirts, and bras. These words are often used when referring to the clothing items worn under clothing. While these terms are similar in meaning, they may be used in different contexts. For example, underpants and briefs are typically used to refer to men's underwear, while panties are typically used to refer to women's underwear. Similarly, boxers are typically worn by men, while knickers are typically worn by women. Regardless of the specific synonym used, they all refer to the same type of clothing item worn under clothing.