motivation
a reason for doing something
Tim’s motivation for studying so hard was to get the highest grade on the test.
ancestors
members of a family or group who lived a long time ago, usually before your grandparents
Annie treasures her necklace, which was passed down by her ancestors.
defiance
a refusal to follow rules or directions
The protesters showed their defiance of an unjust law by staging a sit-in.
boycott
a type of protest in which people refuse to use a service or buy a product
During the Montgomery bus boycott, African-Americans stopped riding city buses.
unprecedented
not known or done before
Astronaut Neil Armstrong’s 1969 walk on the moon was an unprecedented achievement.