(n) home run
(P)
(n) Hodgkin's lymphoma
Hodgkin's disease
(n) phosphine
(n) phosphonic acid
(n) pogo stick (wasei: hopping)
(n) (uk) fairy slipper (Calypso bulbosa, esp. Calypso bulbosa var. speciosa)
(n) hotel-keeper (wasei: hotel man)
(n) hovering
(n) horizon (ger: Horizont)
(n) formalin
(n) formant
(n) homburg
(n) (uk) willow gudgeon (species of fish, Gnathopogon caerulescens)
(n) (1) bowing
(2) Boeing (Company)
(P)
(n) boat man
(n) Bowman's capsule
(n) (comp) Borland
(n,vs) (1) bowling
(2) boring
drilling
(3) (obsc) bawling
(P)
(n) ball-point pen (wasei: ball pen)
(P)
(n) boiling
(n,vs) (1) bowling
(2) (obsc) bawling
(P)
(n) boxing
(P)
(n) buttonwood tree (the American sycamore, Platanus occidentalis)
buttonball tree
(n) (comp) button bar
(n) (obsc) war started or ended with the push of a single 'launch' button (wasei: button war)
(n) button battery
watch battery
button cell
(n) (abbr) sexually flattering clothing (wasei: body con(scious))
(P)
(n) Bohemian
(n,vs) volunteer
(n) Boltzmann