Apogamy is a related term of parthenogenesis.

As nouns the difference between parthenogenesis and apogamy

is that parthenogenesis is Referring to various aspects of asexual reproduction:apogamy is asexual reproduction of a fully formed plant directly from a bud.

As nouns the difference between placeholder and whatsisname

is that placeholder is something used or included temporarily or as a substitute for something that is not known or must remain generic; that which holds, denotes or reserves a place for something to come later while whatsisname is a placeholder for the name of a man whose name the speaker can not bring to mind.

Whatsisname is a related term of whatsername.

In colloquial terms the difference between whatsername and whatsisname

is that whatsername is a placeholder for the name of a woman whose name the speaker can not bring to mind while whatsisname is a placeholder for the name of a man whose name the speaker can not bring to mind.

Whatsit is a related term of whatsisname.

As nouns the difference between whatsit and whatsisname

is that whatsit is (chiefly|uk) a thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say ) while whatsisname is (colloquial) a placeholder for the name of a man whose name the speaker can not bring to mind.

Whatsisname is a related term of whatchamacallit.

As nouns the difference between whatchamacallit and whatsisname

is that whatchamacallit is ''A metasyntactic term used for any object whose actual name the speaker doesn’t know or can’t remember while whatsisname is a placeholder for the name of a man whose name the speaker can not bring to mind.

As nouns the difference between placeholder and whatsername

is that placeholder is something used or included temporarily or as a substitute for something that is not known or must remain generic; that which holds, denotes or reserves a place for something to come later while whatsername is (colloquial) a placeholder for the name of a woman whose name the speaker can not bring to mind.

Whatsit is a related term of whatsername.

As nouns the difference between whatsit and whatsername

is that whatsit is (chiefly|uk) a thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say ) while whatsername is (colloquial) a placeholder for the name of a woman whose name the speaker can not bring to mind.

Whatchamacallit is a related term of whatsername.

As nouns the difference between whatchamacallit and whatsername

is that whatchamacallit is ''a metasyntactic term used for any object whose actual name the speaker doesn’t know or can’t remember while whatsername is (colloquial) a placeholder for the name of a woman whose name the speaker can not bring to mind.

As nouns the difference between crypt and cist

is that crypt is an underground vault, especially one beneath a church that is used as a burial place while cist is a small receptacle for sacred utensils carried in festivals in ancient greece or cist can be (archaeology) a crypt cut into rock, chalk, or a tree trunk, especially a coffin formed by placing stone slabs on edge and topping them with a horizontal slab or slabs.

Danebrog is an alternative form of dannebrog.

As a noun dannebrog is

dannebrog (the danish national flag).