Is “Jackknives” a Scrabble word?
Yes
JACKKNIVES
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Jackknives
noun
1.A compact folding knife.
“He kept a jack-knife in his pocket for various tasks.”
2.The front-dive pike, in which the body folds and unfolds.
“It took me hundreds of dives to master even the simple jackknife”
3.A semi-trailer truck accident in which the vehicle mimics the closing of a jack-knife.
“I have seen several jack-knives along that dangerous stretch of road.”
noun
1.A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.
Synonyms: leave-one-out