parent-teacher associationˌparent-ˈteacher associˌation noun [countable] 
a PTA
a PTA- Schulz, Charles
- Schumann, Robert
- schwa
- Schwarzenegger, Arnold
- Schweitzer, Albert
- sciatic
- sciatica
- science
- science fiction
- Science Museum
- science park
- scientific
- scientifically
- Scientific American
- scientist
- Scientologist
- Scientology
- sci-fi
- Scilly Isles
- scimitar
- scintilla
- scintillating
- scion
- scissors
- sclerosis