As nouns the difference between tower and mainspan

is that tower is a structure, usually taller than it is wide, often used as a lookout, usually unsupported by guy-wires while mainspan is the length of suspended roadway between the towers of a bridge.

As a verb tower

is to be very tall.

As a noun mainspan is

the length of suspended roadway between the towers of a bridge.

In lang=en terms the difference between theme and minitheme

is that theme is the main melody of a piece of music, especially one that is the source of variations while minitheme is a minor theme.

As nouns the difference between theme and minitheme

is that theme is a subject of a talk or an artistic piece; a topic while minitheme is a minor theme.

As a verb theme

is to apply a theme to; to change the visual appearance and/or layout of (software).

As nouns the difference between female and doggess

is that female is one of the female (feminine) sex or gender while doggess is (rare) a female dog.

As an adjective female

is belonging to the sex which typically produces eggs, which in humans and most other mammals is typically the one which has xx chromosomes; belonging to the sex which has larger gametes (for species which have two sexes and for which this distinction can be made).

As nouns the difference between dog and doggess

is that dog is a mammal, canis lupus familiaris , that has been domesticated for thousands of years, of highly variable appearance due to human breeding while doggess is (rare) a female dog.

As a verb dog

is to pursue with the intent to catch.

As nouns the difference between woman and doggess

is that woman is an adult female human while doggess is (rare) a female dog.

As a verb woman

is to staff with female labor.

As nouns the difference between nostalgic and nostalgiac

is that nostalgic is a person who displays nostalgia for something while nostalgiac is a nostalgic person.

As an adjective nostalgic

is of, having, or relating to nostalgia.

In lang=en terms the difference between idealize and overidealize

is that idealize is to conceive or form an ideal while overidealize is to idealize to too great an extent.

As verbs the difference between idealize and overidealize

is that idealize is to regard something as ideal while overidealize is to idealize to too great an extent.

As an adjective fictional

is invented, as opposed to real.

As a noun peryton is

a fictional winged stag.

As an adjective winged

is (poetic).

As a noun peryton is

a fictional winged stag.