in this context score means a set of 20. Therefore 5 sets of 20 = 100 years ago, referring to the time of Abraham Lincoln’s presidency, himself using this term.

make a quick movement of the body, particularly the head or shoulders, as a reflexive response to perceived danger or discomfort.

someone who is overcome with intense fear or terror that leaves the person feeling paralyzed or unable to act.

implies that the boy lacks significant muscle or flesh, giving the impression of a skeletal or angular figure.

means that my ideas were disorganized, confused. It implies that the thoughts were not coherent or clear, possibly mixed up or difficult to understand.

means for something to proceed without any problems or difficulties. The process is efficient and easy.

metaphorically to describe how well two things or people complement each other.

mean to lose visual contact with something or someone.

means to become unable to follow or maintain pace with something.

used metaphorically to describe any romantic couple