Ignorance talking
(모르고 하는 소리)
Ignorance talking is when a person is speaking with a lack of knowledge or information. A person that speaks of politics but never took any classes or knows nothing of it can be described as ignorance talking.

Ignorant(무식한)
Ignorant is a term used when a person is lacking in knowledge, training or information about a subject.

In broad daylight(대낮에, 한낮에)
When a person or thing is in broad daylight, this means that they are outside usually around noon where there is broad daylight.

Monogamy(일부 일 처제)
This is said when a person is to be married with only one person at a time.

Polygamy(일부 다 처제)
Polygamy is the opposite of monogamy which means the practice or conditioning of having more than one spouse at a time.

Homogenous(단일 민족의) 
Homogenous is a biology term used in corresponding in structure because of a common origin.  Homogenous also means to be similar or to be the same.

Heterogeneous(단일민족이 아닌)
Heterogeneous is also a biology term and is the opposite of homogenous. It is a different in kind or not similar to each other.

Xeno phobia(외국인 혐오증)
A xeno phobia is an unreasonable fear or hatred of foreigners or strangers or any object that is strange or foreign.

Raise an objection, refute, oppose to(반대하다. 반박하다.)
The phrase “raise an objection” is an argument offered in disagreement or disapproval.

The ultimate cause (goal) (궁극적 목적)
The ultimate goal would be referring to a person’s most important goal. Many goals can be listed by anybody, but the ultimate goal is the one hardest to reach and to complete.

Overheated engine(과열된 엔진)
This happens when a vehicle has been on and moving for a long period of time and overheats the engine.  This is usually caused by not having enough coolant in the engine and therefore overheats it.