a hollow masonry building unit of cement, terra cotta, etc.: a wall made of concrete blocks. one of a set of cube-shaped pieces of wood, plastic, or the like, used as a child's toy in building. a mold or piece on which something is shaped or kept in shape: a hat block.
Neutral powers during World War II. The neutral powers were countries that remained neutral during World War II. Some of these countries had large colonies abroad or had great economic power.
Neutralization(noun) the act or process of neutralizing, or the state of being neutralized. Neutralization(noun) the act or process by which an acid and a base are combined in such proportions that the resulting compound is neutral.