Words you can make with permission?

This is just the four-letter Words

EMIR

EONS

IONS

IPSO

IRES

IRIS

IRON

MENS

MESS

MIEN

MINE

MINI

MIRE

MISS

MOPE

MOPS

MORE

MORN

MOSS

NIPS

NOES

NOPE

NORM

NOSE

OMEN

ONES

OPEN

ORES

PENS

PERM

PIER

PIES

PINE

PINS

PION

PISS

POEM

PONS

PORE

POSE

PRIM

PROM

PROS

REIN

RIME

RIMS

RIPE

RIPS

RISE

ROMP

ROPE

ROSE

SEMI

SINE

SINS

SIPS

SIRE

SIRS

SNIP

SOME

SONS

SOPS

SORE

SPIN