| A | B |
|---|
| interact | to be involved in communication or activity with somebody else |
| counteract | to act directly against; to prevent from affectin |
| react | to respond to something by taking action |
| progress | movement forward or onward; improvement |
| digress | to move away from |
| obstruct | to block or hinder; to be in the way of |
| con | with, or together |
| counter | against, opposite |
| di | apart, away, not |
| inter | between |
| construct | to form by putting parts together |
| reconstruct | to put something back together |
| luminous | giving off or reflecting light |
| luminary | an object, like a star, that gives off light; a famous person |
| memory | an ability to retain knowledge; an individual's stock of retained knowledge |
| memorial | related to remembering a person or a friend |
| ob | against |
| re | back, again |
| able | able to be |
| al | like, related to |
| motion | the act or process of moving |
| movable | able to move or be moved easily |
| mobility | relating to the quality of being able to move |
| construct | to form by putting together |
| marine | of or related to the sea |
| fragile | able to be broken; delicate |
| ary | someone or something that belongs to |
| ile | of, related to |
| ous | state, quality, act |
| y | state, quality, act |
