The best response to the question regarding the similarities in how Martin Luther King Jr. and Abraham Lincoln use the word "freedom" is:
Both King and Lincoln acknowledge that change is needed in order to bring freedom to every citizen.
This response captures the essence of both leaders' messages. Lincoln's Gettysburg Address emphasizes the need to continue the fight for a nation dedicated to the principle of equality and freedom, while King's "Letter from Birmingham Jail" argues for urgent action to achieve civil rights and justice, highlighting that true freedom for all citizens is still a work in progress.