What does H stand for?

What does H mean?

H	îNăLţIme International » Romanian
H	And How Miscellaneous » Unclassified
H	form H (break; break) contacts Computing » Hardware
H	form H (break; break) contacts Academic & Science » Electronics
H	Haahaa Miscellaneous » Unclassified
H	Halcyon Miscellaneous » Unclassified
H	Half Miscellaneous » Unit Measures
H	Hall Academic & Science » Architecture
H	Ham Miscellaneous » Food
H	Hamilton Miscellaneous » Names and Nicknames
H	Hammer Miscellaneous » Unclassified
H	Hamming Academic & Science » Mathematics
H	Handle Academic & Science » Architecture
H	Handreviewed Miscellaneous » Unclassified
H	Hands Medical » Physiology
H	Hannah Miscellaneous » Names and Nicknames
H	Haploid Medical » Laboratory
H	Hardball Community » Sports
H	Harmony Community » Music
H	Harold Miscellaneous » Names and Nicknames
H	Harpie Miscellaneous » Unclassified
H	Harrier Miscellaneous » Unclassified
H	Harriet Miscellaneous » Names and Nicknames
H	Harrison Miscellaneous » Names and Nicknames
H	Harry Miscellaneous » Names and Nicknames