Thiefing is often a misspelling of thieving.
Thiefing has no English definition.
As a verb thieving
is present participle of thieve.
As an adjective thieving
is that thieves; that steals.
As a noun thieving
is the action of theft.
thieving
English
Verb
(head)
Adjective
(-)
That thieves; that steals.
*
*
Noun
(en-noun)
The action of theft.
*
thiefing
Not English
Thiefing has no English definition. It may be misspelled.
English words similar to 'thiefing':
thieving,
topping,
tapping,
tipping,
tabbing,
tubbing,
tupping,
tiffing,
typoing,
tabooing,
tabuing,
tweeping