A 'complete' word is a word in which every letter, in turn, can be replaced by another to form a new word.
For example, RUG is a complete word because:
-ug = hug
r-g = rig
ru- = run
How many of the following words are not complete words? Proper nouns and names are not allowed.
team
cost
flew
ward
fail
rook
soft
most
lamp
load
Puzzle Copyright © Kevin Stone
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Hint
Another example, PEN is a complete word because:
-en = ten
p-n = pin
pe- = pea
Answer
Three of the words are not complete: flew, rook, lamp.
Reasoning
The remaining 7 words can be changed as follows:
team:
-eam = beam
t-am = tram
te-m = term
tea- = tear
cost:
-ost = host
c-st = cast
co-t = coat
cos- = cosy
flew:
-lew = blew
f-ew = ---- *
fl-w = flow
fle- = flex
ward:
-ard = card
w-rd = word
wa-d = wand
war- = warm
fail:
-ail = nail
f-il = foil
fa-l = fall
fai- = fair
rook:
-ook = book
r-ok = ---- *
ro-k = rock
roo- = roof
soft:
-oft = loft
s-ft = sift
so-t = sort
sof- = sofa
most:
-ost = cost
m-st = mast
mo-t = moat
mos- = moss
lamp:
-amp = damp
l-mp = lump
la-p = ---- *
lam- = lamb
load:
-oad = road
l-ad = lead
lo-d = loud
loa- = loaf