The Difference Between a Dress and a Gown

A gown is a type of formal dress: the word gown refers to more formal garments, like those worn for weddings, proms or balls, while a dress can be any one-piece garment with a skirt of any length, formal or informal. The difference is largely one of semantics and personal preference — there is no exact technical line — but formality plus full length is the distinction most people are using.

Like most fashion questions, the answer depends on who you ask. A short cocktail garment will be called a dress by almost everyone; a full-length garment in silk or satin for a formal affair will be called a gown by almost everyone. Between those poles, usage overlaps, and understanding the history of the two words explains why.

What a Dress Is

A dress is a garment consisting of a skirt with an attached bodice, or a matching bodice giving the effect of a one-piece garment. It consists of a top piece that covers the torso and hangs down over the legs, and it can be any one-piece garment containing a skirt of any length. Dresses can be formal or informal, which makes dress the broader and more flexible of the two words.

The hemlines of dresses vary depending on the whims of fashion and the modesty or personal taste of the wearer, from very short to floor length. Dress is therefore the safe general term: day dress, summer dress, cocktail dress and evening dress all name the same basic garment at different levels of formality and length. If a garment is a one-piece skirted garment and you are unsure which word to use, dress will never be wrong.

What a Gown Is

A gown, from the medieval Latin gunna, is a usually loose outer garment from knee- to full-length, and in modern use it means a full-length woman's garment consisting of a bodice and an attached skirt. The lower part of either garment is the skirt, which covers the person from the waist downwards. Formal gowns generally have a fitted bodice and a full-length, full skirt, and it is that combination — fitted top, long full skirt, formal occasion — that the word gown now signals.

An evening gown, also called an evening dress or simply a gown, is a long flowing women's dress usually worn to a formal affair. It ranges from tea length and ballerina length to full length, and evening gowns are usually made of luxurious fabrics such as chiffon, velvet, satin and organza, with silk a popular fibre for many of them. Although the terms are used interchangeably, a ball gown always has a full skirt and a fitted bodice, while an evening gown can be any silhouette — sheath, mermaid, A-line or trumpet shaped — and may have an empire or dropped waist.

How the Words Changed Places

Before the Victorian period, the word dress usually referred to a general overall mode of attire for either men or women — as in the phrases evening dress, morning dress, travelling dress and full dress — rather than to any specific garment. The most often used English word for a woman's skirted garment was gown. In other words, gown once did the everyday work that dress does today, and dress named the whole outfit or occasion rather than a single piece.

By the early 20th century, both gown and frock were essentially synonymous with dress, although gown was more often used for a formal, heavy or full-length garment and frock or dress for a lightweight, shorter or informal one. Only in the last few decades has gown lost its general meaning of a woman's garment in the United States in favour of dress. Today the usage is chiefly British, except in historical senses or in formal cases such as evening gown and wedding gown. Frock, used since Middle English for an article of clothing for men and women, survives as an alternative term for a girl's or woman's dress in standard and world English.

Wedding Gowns and Everyday Usage

A wedding dress, or wedding gown — both names are correct — is the clothing worn by a bride during a wedding ceremony, and the colour, style and ceremonial importance of the gown can depend on the religion and culture of the wedding participants. In Western cultures, brides often choose a white wedding dress, a choice made popular by Queen Victoria in the 19th century. In Eastern cultures, brides often choose red to symbolise auspiciousness. The wedding garment takes the word gown so naturally because it is the most formal dress most people ever wear.

In many cultures, dresses and gowns are worn most often by women and girls, and retailers use the words to set expectations: a gowns department promises length, luxury fabrics and formal occasions, while a dresses department promises everything. The practical rule for shoppers and writers alike is simple. Use dress as the general word for any one-piece skirted garment, and reserve gown for the formal, usually full-length garments — weddings, proms, balls and formal evenings — where the occasion itself is dressed up.