summer and winter
run the gauntlet
test period
trial period
watchful waiting
probation
on trial
prove
trial
testing
tentative
all the while
pilot project
pilot program
testbedding
trial run
pilot
undergo
tried and true
hour of cause
put to the test
immunoassay
sample
take time
tribotest
overtest
test out
efficacy
sit
try
trialable
o'er
over
testerically
laboratorily
experiment
trialling
try out
clock-watching
clock-watch
self-test
put through its paces
try on for size
cotest
season
test
experimentalist
proof
sieve
foretest
screen
cotemporaneously
aftertest
flirt
screen out
sort
comparatism
in one's own time
experimentation
testingly
give something a whirl
trained
long haul
long-running
long run
wind tunnel testing
long-range
battle-tested
long
pretest
beans
time-use
see
testedness
inside
testiness
tasky
experimentational
milk the clock
PAT testing
trier
midperiod
testability
examine
testee
essay

English words for 'To spend extended periods of time with; to test.'

As you may have noticed, above you will find words for "To spend extended periods of time with; to test.". Hover the mouse over the word you'd like to know more about to view its definition. Click search related words by phrase or description. to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.

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