PUP
pup, whelp
(noun) young of any of various canines such as a dog or wolf
puppy, pup
(noun) an inexperienced young person
whelp, pup
(verb) give birth to (a puppy); “the dog whelped”
Source: WordNet® 3.1
Etymology
Noun
pup (plural pups)
A young dog, wolf, fox, seal, or shark, or the young of certain other animals.
A young, inexperienced person.
Any cute dog, regardless of age.
A short semi-trailer used jointly with a dolly and another semi-trailer to create a twin trailer.
Verb
pup (third-person singular simple present pups, present participle pupping, simple past and past participle pupped)
(intransitive) To give birth to pups.
Anagrams
• Upp
Noun
PUP (plural PUPs)
(computing) Acronym of potentially unwanted program: software that most computer users do not want on their computers, such as adware.
(insurance) Paid up
(protein) Prokaryotic ubiquitin-like protein
Anagrams
• Upp
Source: Wiktionary
Pup, n. Etym: [See Puppy.] (Zoöl.)
(a) A young dog; a puppy.
(b) a young seal.
Pup, v. i. [imp. & p. p. Pupped; p. pr. & vb. n. Pupping.]
Definition: To bring forth whelps or young, as the female of the canine
species.
Source: Webster’s Unabridged Dictionary 1913 Edition