twofoldtwo‧fold /ˈtuːfəʊld $ -foʊld/ adjective 
a twofold increase in cases of TB2having two important parts: The benefits of the scheme are twofold.—twofold adverb: Student numbers have expanded twofold in ten years.
EXAMPLES FROM OTHER DICTIONARIES
- a twofold increase in the genetic mutations
- My reasons for leaving are twofold.
- The answer to the question is twofold.
- The last ten years have seen a twofold increase in the numbers of deaths on the road.
- This new legislation will have a twofold effect on businesses.
- Because of the number of peaks, the structured form must contain a twofold symmetry if duplex, or fourfold if tetraplex.
- The answers would seem to be twofold.
- The government has a twofold task.
- The mechanism of the hypercalcemia in vitamin D intoxication is twofold.
- The principal findings of the Implications Team, concurred in by the 350 members of the plenary, were twofold.
- The subject is essentially twofold - beach and palm trees, so thought must be given to each.
- This difference, while twofold, is not statistically significant.
- Thus the act in a twofold sense is repugnant to the Constitution.
Longman Language Activatorwhen a number or amount is twice as big as another
: twice as big/fast/much/many etc bigger, faster etc by 100%: · This sweater would have cost twice as much if I'd bought it in England.twice the size/my salary/his age etc: · He married a woman who was twice his age.· It's about twice the length of a football field.· Full cream milk contains about twice the fat of skimmed milk.
twice as much as an amount, number etc: double the amount/number/weight/size/cost etc: · Over 30% of marriages end in divorce, which is double the number 20 years ago.· The house is now worth double the amount we paid for it.
two times as much or as many of something: a twofold increase: · The last ten years have seen a twofold increase in the numbers of deaths on the road.
consisting of two things of the same type · I pushed the double doors open and walked into the office.· The report and photographs fitted nicely onto a double page.· You cannot park on double yellow lines.
having two types of one particular thing: · It's much safer if you learn to drive in a car which has dual controls.· He found it difficult to cope with the dual pressures of work and home life.dual role/function/purpose/aim: · Don Jose continued in his dual role of father and teacher to his son.· The magistrate's court has a dual function: to try minor cases and consider whether in more serious cases there is enough evidence for a trial to take place.dual nationality/citizenship (=when someone has the legal right to live in two different countries): · He has dual nationality because his father was born in Pakistan and his mother is British.
formal if the reasons, aims, or effects etc, of something are twofold , there are two reasons, aims, or effects: · My reasons for leaving are twofold.· This new legislation will have a twofold effect on businesses.
COLLOCATIONS FROM THE ENTRY a twofold increase in cases of TBCOLLOCATIONS FROM THE CORPUSNOUN
1two times as much or as many of something: a twofold increase in cases of TB· The result was a more than twofold increase in the rate of locomotive production.· These show since 1939 a more than twofold increase in arable land and a corresponding decline in permanent pasture.
a twofold increase in cases of TB2having two important parts: The benefits of the scheme are twofold.—twofold adverb: Student numbers have expanded twofold in ten years.