polo shirt 
noun
A casual short-sleeved cotton shirt with a collar and several buttons at the neck.Wear with a polo shirt or a plain shirt and a low-key tie....
- He was wearing a navy blue button neck polo shirt, worn blue jeans with a tear on the right leg and trainers.
- An open-collar white shirt or polo shirt with blue jeans can take the casual look to the work place.
- monoenergism
- monoester
- monoestrous
- monoethanolamine
- mono-ethnic
- monoethyl
- monofactorial
- monofil
- monofilament
- monoflagellate
- monoflagellated
- monofunctional
- monogamian
- monogamic
- monogamise
- monogamist
- monogamistic
- monogamize
- monogamous
- monogamously
- monogamousness
- monogamy
- monogastric
- monogatari
- monogatori