Howcome

5 clues
Why ___
Why is that?
Querying words
Appeal for a reason
Frequent question from a toddler
Similar answers:
Abccomeabcgo
Academyawardsshow
Acomedyoferas
Acomedyoferrors
Adogcomeswhenhe
Afinehowdoyoudo
Airshow
Airshowmaneuver
Airshows
Alandershowitz
Allagesshow
Allcomers
Amanwhowantsto
Americancomedyawards
Americanknowhow
Andhow
Andstoletheshow
Annualelectronicsshow
Anybodywhocomes
Anyhow