As adjectives the difference between familiar and meet

is that familiar is familial while meet is suitable; right; proper.

As a verb meet is

(lb) of individuals: to make personal contact .

As a noun meet is

a sports competition, especially for athletics or swimming.

As nouns the difference between deviate and slant

is that deviate is (sociology) a person with deviant behaviour; a deviant, degenerate or pervert while slant is a slope or incline.

As verbs the difference between deviate and slant

is that deviate is to go off course from; to change course; to change plans while slant is to lean, tilt or incline.

As verbs the difference between ought and would

is that ought is (obsolete) (owe) or ought can be (auxiliary) indicating duty or obligation while would is (lb) as a past-tense form of (will) .

As a pronoun ought

is anything .

As an adverb ought

is at all, to any degree.

As a noun ought

is a statement of what ought to be the case as contrasted with what is the case or ought can be cipher, zero, nought.

As nouns the difference between infusion and decoction

is that infusion is a product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities while decoction is an extraction or essence of something, obtained by boiling it down.

As a verb insist is

to hold up a claim emphatically.

As verbs the difference between preserve and insist

is that preserve is while insist is to hold up a claim emphatically.

As adverbs the difference between most and virtually

is that most is superlative form of many while virtually is almost but not quite.

As a determiner most

is superlative form of much.

As a noun most

is the greatest amount.

As nouns the difference between sentiment and tendency

is that sentiment is a general thought, feeling, or sense while tendency is a likelihood of behaving in a particular way or going in a particular direction; a tending toward.

As an adverb seriously is

(manner) in a serious or literal manner.

As nouns the difference between crest and casque

is that crest is a tuft, or other excrescence or natural ornament, growing on an animal's head; the comb of a cock; the swelling on the head of a serpent; the lengthened feathers of the crown or nape of bird, etc while casque is a visorless helmet.

As a verb crest

is particularly with reference to waves, to reach a peak.