Frequency - Word Form
 48 heat
 44 heart
 44 or
 43 from
 43 hence
 41 also
 41 respiration
 39 if
 38 out
 36 other
 36 so
 36 there
 36 these
 34 can
 33 lung
 33 some
 32 life
 32 refrigeration
 32 through
 31 blood
 30 animal
 30 breath
 30 has
 30 its
 30 one
 29 organ
 29 same
 29 what
 28 at
 28 death
 28 do
 27 an
 27 no
 26 both
 26 gills
 26 means
 26 time
 25 being
 25 case
 25 those
 23 account
 23 cold
 23 fire
 23 food
 23 soul
 23 while
 22 mouth
 22 others
 22 reason
 22 why
 21 however
 21 owing