Women Wedding Suits

What is the difference between semi-formal and formal wear?

I am attending the National Youth Science Camp and need 3 dress outfits for when we travel to Washington DC. One is semi-formal, the other two are formal (but not prom dresses). What's the diff?

Public Comments

1. Tie or no tie? Evening gown or summer dress?
2. The person wearing it.
3. For men semi-formal would be slacks, shirt, tie, and jacket (maybe a suit). Formal for a man would be a tux. For ladies semi-formail is a knee-length dress. Formal dress would be a full length dress.
4. Semi formal is particially casual. Meaning you can get away with khakis. But for formal definately a dress or two piece suit (anything fancy).
5. take it like this formal: long dress hair in an updo stilleto heels expensive dress limo semi formal: knee length dress hair down wavy/straight wedges, kitten heels reasonable cost dress your moms minivan
6. Semi-Formal would be a cute long skirt with a trendy top that will catch peoples eyes. Formal is a a typical sum-dress or something that classy but not to formal like you said in a prom!
7. semi-formal clothes don't have any strict rules.. u usually wear a skirt/slacks with a nice top. for formal wear, u usually wear a little black dress or something to that extent.