noun
Physical or literal gap, such as a space between objects or a break in continuity.
ドアと床の間にギャップがある。
There is a gap between the door and the floor.
noun
difference; disparity; disconnect
Abstract difference or mismatch, often between expectations and reality, generations, or opinions.
彼の言動にはギャップがある。
There is a disconnect between his words and actions.
世代間のギャップを感じる。
I feel the generation gap.