If a castle wall or a defense is “vulnerable,” it is open to an attack or lacking a defense. It is similar in meaning to "undefended," which means not defended. To further help you, if you are “reckless,” you do not consider the results of your actions; “frightened” means scared.

"Illumination" comes from the root verb "illuminate" which means to light something up. The suffix "-ion" indicates a noun.

To “surpass” is to go beyond or to become better than someone or something. “Exceed” also means to go beyond the limit of something or to become better than someone or something. Look for prefixes like "sur-" and "ex-"where "sur-" can mean above and "ex-" can mean out of. To further help you, “recede” means to go back, so you can say waves “recede” on the shore.

If a castle wall or a defense is “vulnerable,” it is open to an attack or lacking a defense. It is similar in meaning to "undefended," which means not defended. To further help you, if you are “reckless,” you do not consider the results of your actions; “frightened” means scared.

"Illumination" comes from the root verb "illuminate" which means to light something up. The suffix "-ion" indicates a noun.

The prefix "semi-" usually means half, so we can assume that a “semicircle” is half a circle. To provide further help, a three-dimensional circle is called a “sphere;” “parallel” means running alongside, having the same slope; “slope” means slanted ground; “gradient” means slope. In addition to being terms we use in English, these are also all mathematical terms.

The prefix "ex_-_" means out of or away from and the word “change” means to make or become different, so when you “exchange” something, you give away one thing and get something different in return for it. This is most similar in meaning to “trade.” To provide further help, “study” means to review and practice material to learn it; and “wander” means to walk around without a destination.

The prefix "ex_-_" means out of or away from and the word “change” means to make or become different, so when you “exchange” something, you give away one thing and get something different in return for it. This is most similar in meaning to “trade.” To provide further help, “study” means to review and practice material to learn it; and “wander” means to walk around without a destination.

The prefix "semi-" usually means half, so we can assume that a “semicircle” is half a circle. To provide further help, a three-dimensional circle is called a “sphere;” “parallel” means running alongside, having the same slope; “slope” means slanted ground; “gradient” means slope. In addition to being terms we use in English, these are also all mathematical terms.

To “surpass” is to go beyond or to become better than someone or something. “Exceed” also means to go beyond the limit of something or to become better than someone or something. Look for prefixes like "sur-" and "ex-"where "sur-" can mean above and "ex-" can mean out of. To further help you, “recede” means to go back, so you can say waves “recede” on the shore.