Learning ResourcesHomeLearning ResourcesNASA’s Picture…For Kids and StudentsKids and Students HomeNASA Kids’ ClubNASA Kids ScienceStudents Grades K-4Students Grades 5-8Students Grades 9-12Internships and FellowshipsSTEM Opportunities For StudentsFor EducatorsEducators HomeSearch STEM ResourcesEducators Grades K-4 Educators Grades 5-8Educators Grades 9-12Internships and FellowshipsOutside the ClassroomFor Colleges and UniversitiesColleges HomeInternships and FellowshipsEPSCoRMinority University Research Space GrantSTEM Opportunities For Students Search STEM ResourcesFor ProfessionalsLearning ResourcesLearning Resources HomeAbout NASA STEM EngagementScience for Everyone Welcome Young Explorers! Are you ready for an A-B-C adventure? NASA’s Picture Dictionary Check out all the letters… Click the letters below to find word definitions and pictures related to space, flight and more. Take a trip through the alphabet — from Aerodynamics to Zarya — and learn new words along the way! A – D E – H I – L M – P Q – T U – X Y – Z A – D Go back up AA is for …BB is for …CC is for …DD is for … E – H Go back up EE is for …FF is for …GG is for …HH is for … I – L Go back up II is for …JJ is for …KK is for …LL is for … M – P Go back up MM is for …NN is for …OO is for …PP is for … Q – T Go back up QQ is for …RR is for …SS is for …TT is for … U – X Go back up UU is for …VV is for …WW is for …XX is for … Y – Z Go back up YY is for …ZZ is for …