The word "jumbo" is correct and usable in written English.
You can use it as an adjective or as a noun. For example: The jumbo jet was the largest aircraft I had ever seen.
The hulking, purpose-built Jack/St Malo platform sits in ultra-deep waters of over 2,000m – displacing as much water as 350 jumbo jets would – drilling down to reservoirs 6,000 metres beneath the seabed (approximately 14 Empire State Buildings deep).
Tim Breedon, the outgoing chief executive of Legal and General, has proposed that loans get aggregated into jumbo bonds that could be bought and sold by large investors.
There was a roar like being behind a jumbo jet.
Last year Makhacheva baked a jumbo cake in the shape of the Russian Federation, complete with all of its regions and autonomous republics, for an exclusive private party in Moscow.
Buy one jumbo plug plant for £12.99, or three for £19.48 (including UK mainland p&p).
Fat, steel-cut rolled oats, jumbo oats, organic Scottish porridge oats – each of these will take too long to hydrate in doughs and batters, leaving the finished thing oddly chewy, bitty and dry.
It seems like there aren't many places left where it feels safe to sit around in baggy shorts with your lobster skin and jumbo-size bottle of factor 50, just reading a book and minding your own business.
For all the trouble it gets him into, it looks as if Lehmann's particular brandof straight-talking bullshit has got through in a way that Arthur's mumbo-jumbo never did.
So, no difficulty banning religious symbols from public buildings, no religion in education except in a cultural and historical context, and hatching, matching and dispatching without the need for a God or any mumbo-jumbo about "the devil and all his works" or "those whom God has joined together" or a heavenly afterlife.
But their talks came to nothing, and Airbus executives suspected that it was all a ploy by Boeing to delay Airbus's own super-jumbo.
When Airbus moved to stake out the super-jumbo niche, the old Boeing would have plodded on with its rival stretched 747.
