homogeneous - adj
The group of boys was homogeneous, because they dressed alike and liked the same activities.
Two people were brushing their teeth simultaneously because they were doing it at the same time.
heterogeneous - adj
Boston is heterogeneous because it has a diverse population.
alternative - n
You have an alternative which way to get there because you have a choice between driving and walking.
magnify - v
He magnified the image because he wanted to make it appear larger.
maximum - adj
The maximum temperature was 100 today because it was the greatest temperature recorded.
megalomaniac - n
The dictator was a megalomaniac because he was obsessed with his power.
miniature - n
The poodle was miniature because it was much smaller than normal.
microblast - n
Microbursts are dangerous for airplanes because a downdraft could cause it to crash.
veracity - n
My friend lacks veracity because he is not always honest and truthful.