As a noun development

is (uncountable) the process of developing; growth, directed change.

As a letter m is

the thirteenth letter of the.

As a symbol m is

mega- or m can be the roman numeral m (1,000).

As nouns the difference between conservation and retention

is that conservation is the act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation while retention is the act of retaining or something retained.

As a verb conserving

is .

As an adjective conserving

is accompanied by conservation.

As a noun retention is

retention.

In obsolete terms the difference between conserve and retention

is that conserve is a conservatory while retention is a place of custody or confinement.

As nouns the difference between conserve and retention

is that conserve is wilderness where human development is prohibited while retention is the act of retaining or something retained.

As a verb conserve

is to save for later use, sometimes by the use of a preservative.

As adjectives the difference between hinky and fishy

is that hinky is acting suspiciously; strange, unusual; acting in a manner as if having something to hide, or seemingly crooked while fishy is of, from, or similar to fish.

As a noun fishy is

diminutive of lang=en.

As nouns the difference between terriers and hounds

is that terriers is plural of lang=en while hounds is plural of lang=en.

As a verb hounds is

third-person singular of hound.

As nouns the difference between kabeljou and mulloway

is that kabeljou is a type of fish from southern Africa, species: Argyrosomus coronus while mulloway is any of several large, predatory fish, of the genus genus: Argyrosomus, found along the eastern coast of Africa and the coasts of Australia; they are prized as sport.

As nouns the difference between agility and versatility

is that agility is the quality of being agile; the power of moving the limbs quickly and easily; nimbleness; activity; quickness of motion; as, strength and agility of body while versatility is the property of being versatile or having many different abilities; flexibility.

As nouns the difference between uptake and utilisation

is that uptake is understanding, comprehension while utilisation is the act of using something.

As a verb uptake

is (archaic) to take up, to lift.

As nouns the difference between enthusiasm and fascination

is that enthusiasm is (obsolete|or|historical) possession by a god; divine inspiration or frenzy while fascination is the act of fascinating, bewitching, or enchanting; enchantment; witchcraft; the exercise of a powerful or irresistible influence on the affections or passions; unseen, inexplicable influence.