Following are all the half-plane like words, in the list below.
HALFPLANE
100% like half-plane
HALF SPACE
100% like half-plane
HALF-RAY
100% like half-plane
HALFSPACE
100% like half-plane
HALF-INTEGER
100% like half-plane
HEMIELLIPSOID
100% like half-plane
HALFWAVE
100% like half-plane
HALVING
100% like half-plane
OPEN HALF SPACE
100% like half-plane
HALF-LINE
100% like half-plane
RIGHT ANGLE
100% like half-plane
SEMIPERIMETER
100% like half-plane
COPLANE
100% like half-plane
EUCLIDEAN PLANE
100% like half-plane
SEMIMATRIX
100% like half-plane
SEMILENS
100% like half-plane
SUPERPLANE
100% like half-plane
SEMISPACE
100% like half-plane
PHASE PLANE
100% like half-plane
HEMIELLIPSE
100% like half-plane
SEMIMAJOR AXIS
100% like half-plane
MIDPOINT
100% like half-plane
BISECT
100% like half-plane
OPPOSITE ANGLE
100% like half-plane
QUADRANT
100% like half-plane
FRACTIONAL NUMBER
100% like half-plane
PRISMATOID
100% like half-plane
HALF-OPEN INTERVAL
100% like half-plane
HYPERINTERVAL
100% like half-plane
SEMICIRCLE
100% like half-plane
HEMICUBE
100% like half-plane
SEMIANGLE
100% like half-plane
PLANE
100% like half-plane
SEMIAXIS
100% like half-plane
HALFSPHERE
100% like half-plane
SEMIMERIDIAN
100% like half-plane
PERPENDICULAR
100% like half-plane
SEMIARC
100% like half-plane
SEMIORDINATE
100% like half-plane
PARTIAL FRACTION
100% like half-plane
EVEN NUMBER
100% like half-plane
SEMILUNE
100% like half-plane
PHASEPLANE
100% like half-plane
HYPERBOLIC PLANE
100% like half-plane
SEMIELLIPSE
100% like half-plane
SUBSEMIRING
100% like half-plane
PROJECTIVE PLANE
100% like half-plane
BISECTOR
100% like half-plane
COMPLEX PLANE
100% like half-plane
BISEGMENT
100% like half-plane
HALF-EDGE
100% like half-plane
RADICAL PLANE
100% like half-plane
DIHEDRAL
100% like half-plane
HYPERBOLIC SECTOR
100% like half-plane
NONHYPOTENUSE
100% like half-plane
HEMIMATRIX
100% like half-plane
ORTHOPAIR
100% like half-plane
ODD NUMBER
100% like half-plane
QUASILATTICE
100% like half-plane
SEMIDISK
100% like half-plane
HYPERFACE
100% like half-plane
CARTESIAN PLANE
100% like half-plane
SEMITANGENT
100% like half-plane
SEMIPARABOLA
100% like half-plane
SEMICIRCUMFERENCE
100% like half-plane
SEMISUM
100% like half-plane
WHOLE NUMBER
100% like half-plane
HYPERPLANE
100% like half-plane
SEMIVARIATION
100% like half-plane
COLINE
100% like half-plane
SEMIFIELD
100% like half-plane
HAM SANDWICH THEOREM
100% like half-plane
PLANE GEOMETRY
100% like half-plane
NUMBER RAY
100% like half-plane
DUAL POLYHEDRON
100% like half-plane
SPLIT-COMPLEX NUMBER
100% like half-plane
IMAGINARY AXIS
100% like half-plane
HEMIPERFECT NUMBER
100% like half-plane
DIHEDRON
100% like half-plane
SEGMENT
100% like half-plane
PLANE OF SYMMETRY
100% like half-plane
BIFOLIUM
100% like half-plane
ENTIRE FUNCTION
100% like half-plane
LINE SEGMENT
100% like half-plane
BITANGENT
100% like half-plane
LOOSE EDGE
100% like half-plane
HALFWAY MODEL
100% like half-plane
GENON
100% like half-plane
SURFACE INTEGRAL
100% like half-plane
BICORN
100% like half-plane
DIAGONAL
100% like half-plane
BIMEDIAN
100% like half-plane
POLYHE
100% like half-plane
ABSOLUTE
100% like half-plane
PLANAR GRAPH
100% like half-plane
PLANE GRAPH
100% like half-plane
PARITY
100% like half-plane
POLYARE
100% like half-plane
FRACTION BAR
100% like half-plane
HEMICONTINUITY
100% like half-plane