Facelift
The words are all nouns.
rainbowraincoatraindroprainstorm
bedpostdoorpostfencepostgatepostgoalpostguidepostlamppostoutpostpostboxpostcardpostdatepostmanpostmarkpostmodernpostnasalpostnatalpostscriptpostwarsignpost
grandstandbandstandhandstandkickstandnewsstandnightstandoutstandingstandalonestandbystandoffstandoutstandpipestandstillstandpointunderstand
The compound word common to all three words is "race."
-blacksmith-goldsmith-gunsmith-locksmith-silversmith-tinsmith;;are all compound words ending in -smith
The:TTheomachy:Theomancy:Theopathetic:Theopathic:Theophanic:Theophany:Theophilanthropic:Theophilanthropism:Theophilanthropist:Theophilanthropy:Theophilosophic:Theopneustic: ...Theorem:TheorematicTheorematicalTheorematistTheoremicTheoreticTheoreticalTheoreticsTheoricTheoricaTheoricalTheoricallyTheoriesTheoristTheorizationTheorizeTheorizedTheorizerTheorizingTheory
All proper nouns should be capitalized but all words are capitalized at the beginning of the sentence.
but face
Yes, all words used in the beginning of the sentence is capitalized.
It is a compound word although it is also one word.
No jump rope is not a compound word. For example: bathroom,classroom, and are all compound words. The words: jump rope, line backer, and football field are all different things without the second word, but unless they are joined they aren't compound.