As proper nouns the difference between mother and grandma

is that mother is one's mother while grandma is the name used for one's grandma.

As adverbs the difference between persistently and parallel

is that persistently is in a persistent manner while parallel is with a parallel relationship.

As an adjective parallel is

equally distant from one another at all points.

As a noun parallel is

one of a set of parallel lines.

As a verb parallel is

to construct or place something parallel to something else.

As a noun general

is general.

As a verb integrated is

(integrate).

As an adjective integrated is

composed and coordinated to form a whole.

As a verb perilla

is .

As a noun knotweed is

any of several plants of the genus polygonum , with jointed stems and inconspicuous flowers.

As nouns the difference between knotweed and aster

is that knotweed is any of several plants of the genus Polygonum, with jointed stems and inconspicuous flowers while aster is a star.

As adjectives the difference between covetous and coveted

is that covetous is inordinately desirous; excessively eager to obtain and possess (especially money); avaricious while coveted is highly sought-after.

As a verb coveted is

past tense of covet.

As nouns the difference between humanoid and cyborg

is that humanoid is a being having the appearance or characteristics of a human while cyborg is cyborg.

As an adjective humanoid

is having the appearance or characteristics of a human.

As proper nouns the difference between ray and jason

is that ray is from a (etyl) nickname meaning a king or a roe while jason is (greek mythology) the leader of the argonauts, who retrieved the golden fleece from king aeetes of colchis, for his uncle pelias.

As nouns the difference between taint and pollution

is that taint is a contamination, decay or putrefaction, especially in food while pollution is the act of polluting or the state of being polluted, especially the contamination of the environment by harmful substances.

As a verb taint

is to contaminate or corrupt (something) with an external agent, either physically or morally.

As an adjective smug

is irritatingly pleased with oneself; self-satisfied.

As a verb smug

is (obsolete|transitive) to make smug, or spruce.

As a noun obstacles is

.