alloparent (allomother, allofather)

These are real words from biology, but, given their dismal # of Google hits, they need to be popularized.

An alloparent is an animal that serves as 'caretaker' for young that are not its own offspring. The term could be extended, in obvious ways, to overburdened professional couples' nannies who are, well, more than just nannies.

opinion download

The act of absorbing one's opinions and/or values passively - from religious dogma, political party platforms, family/peer influences, and the like - with little or no conscious thought and with absolutely no critical thinking.

Of the world's religious people, essentially 100% have chosen - surprise! - the religion of their parents and/or geographical region. This is opinion download at work.

FMI

For my information.

More appropriate in many circumstances than the usual stand-ins, "just so that I know," "to clarify," etc.

diffracto (fracto)

The bar of light seen under a door from a darker room or hallway. From "diffraction." Example: "I don't see any fractoes under the doors, so everyone must have gone to bed."

commuterville

A high-density housing development built close to a major transit corridor, usually a mass transit line (subway, BART, LIRR, etc.) Often as densely built-up as downtown residences in major cities, despite being located where buildings are otherwise rather spread out. Commutervilles also tend to feature smaller units and/or higher rents than more traditional housing in the same area.

pointful

Antonym for "pointless"; viz., able to, or meant to, achieve some outcome. An action is pointful if there is some reason for performing it.

Since "pointless" already has various approximate antonyms, it's worth pointing out (heh) how they differ from "pointful":
* "Purposeful" connotes a sense of determination or resolute zeal in the action's performance, whereas "pointful" refers only to the action's consequences.
* "Worthwhile" implies that benefits, however defined, outweigh costs. For instance, spending 41 cents' postage to redeem a 25-cent rebate would be pointful but not worthwhile.
* "Justified" occurs principally in logical arguments, appealing to either scientific or moral principles.

splick, splicker

SPLICK (noun): Parking spot that appears to be empty until one pulls within a few feet of it, revealing the presence of a tiny compact car.

SPLICKER (noun): The aforementioned compact car, which creates the mirage of an empty parking spot.