- Abduction
- Accommodations
- Activities of Daily Living
- Adaptive Equipment (A/E)
- Adaptive Physical Education (APE)
- Adaptive Response
- Adduction
- Agonist Muscle
- American Occupational Therapy Association
- American Physical Therapy Association
- American Speech-Language-Hearing Association
- Antagonist Muscle
- Articulation
- Auditory Processing
- Autism Spectrum Disorder
- Babble
- Ball Skills
- Bilateral Coordination
- Body Awareness
- Choice of Two Strategy
- Container Baby Syndrome
- Crawling
- Creeping
- Cruising
- Dexterity