As nouns the difference between tetrad and quartet

is that tetrad is a group of four things while quartet is (music) a music composition in four parts, each performed by a single voice or instrument.

As nouns the difference between rink and pitch

is that rink is a man, especially a warrior or hero or rink can be a ring; a circle while pitch is a sticky, gummy substance secreted by trees; sap or pitch can be a throw; a toss; a cast, as of something from the hand or pitch can be (music) the perceived frequency of a sound or note.

As a verb pitch is

to cover or smear with pitch or pitch can be (senseid)to throw or pitch can be to produce a note of a given pitch.

As verbs the difference between certified and mortified

is that certified is (certify) while mortified is (mortify).

As adjectives the difference between cheated and defeated

is that cheated is as if having been deceived while defeated is subjugated, beaten, overcome.

As verbs the difference between cheated and defeated

is that cheated is (cheat) while defeated is (defeat).

As nouns the difference between pass and dragon

is that pass is pass (between mountains ) while dragon is (mythical creature).

As a noun thief is

one who has carried out a theft.

As an initialism if

is interactive fiction.

As a verb imagine is

.

As nouns the difference between rotunda and cupola

is that rotunda is a round building, usually small, often with a dome while cupola is a dome-shaped ornamental structure located on top of a larger roof or dome.

As adjectives the difference between exotic and quixotic

is that exotic is foreign, especially in an exciting way while quixotic is possessing or acting with the desire to do noble and romantic deeds, without thought of realism and practicality; exceedingly idealistic.

As a noun exotic

is an organism that is exotic to an environment.

As a noun cupola is

(architecture) a dome-shaped ornamental structure located on top of a larger roof or dome.