Making sentences with what I learned today

1, quantum leap
They signed the contract, which amounts to the a quantum leap in of their cooperation?. (not a good example and ambiguous)

2,ascendancy
In this power struggle, the left-wing finally gained the (article is optional) ascendancy.

3,sneaking
I have a sneaking suspicion that they will fail in this competition.
She always has this sneaking admiration for him.

4,conducive
The library environment is indeed conducive to studying.

5,orchestrate
They are orchestrating a series of propaganda??? activities for his debut.

6,tinge
Could you tell that there was a slight tinge of jealousy in her tone?

7,die hard
This social malaise which has last down the centuries is difficult to remove, because of die hard right wing Republicans it dies hard. NO I think you want a NOUN or ADJ 'die hard'

8,formative
According to some historians, eighteenth century was the formative period of 'Englishness'.

9,close ranks
For the sake of the overall situation, they temporarily laid their divergence differences aside and closed ranks to get through the crisis plight (rarely used).

10,augur
There are have been continuous problems from in the beginning, that do which does not augur well.

Making sentences with what I learned today

1, quantum leap
They signed the contract, which amounts to the quantum leap of their cooperation.

It was a quantum leap for the two companies to sign the contract, given their history of fierce competition to outdo each other.

2,ascendancy [also can be spelt as "ascendency"]

In this power struggle, the left-wing finally gained the ascendancy.

3,sneaking
I have a sneaking suspicion that they will fail in this competition.
She always has this sneaking admiration for him.

4,conducive
The library environment is indeed a conducive to place to studying.

5,orchestrate
They are orchestrating a series of propaganda activities for his debut.

6,tinge
Could you tell that there was a slight tinge of jealousy in her tone?

7,die hard
This social malaise which has last down the centuries is difficult to remove, it dies hard.

This is a die-hard malaise which has lasted throughout the centuries and is difficult to eradicate because time had made it into a tradition!

8,formative
According to some historians, eighteenth century was the formative period of 'Englishness'.

9,close ranks
For the sake of the overall situation, they temporarily laid their divergence differences aside and closed ranks to get through the plight.

10,augur
There are continuous With so many problems in the beginning, which it does not augur well for this endeavor.

Making sentences with what I learned today

1, quantum leap
They signed the contract, which amounts to the quantum leap of their cooperation.

2,ascendancy
In this power struggle, the left-wing finally gained the ascendancy.

3,sneaking
I have a sneaking suspicion that they will fail in this competition.
She always has this sneaking admiration for him.

4,conducive
The library environment is indeed conducive to studying.

5,orchestrate
They are orchestrating a series of propaganda activities for his debut.

6,tinge
Could you tell that there was a slight tinge of jealousy in her tone?

7,die hard
This social malaise which has lasted down the centuries is difficult to remove, it dies hard.

8,formative
According to some historians, eighteenth century was the formative period of 'Englishness'.

9,close ranks
For the sake of the overall situation, they temporarily laid their divergence aside and closed ranks to get through the plight.

10,augur
There are continuous problems in the beginning, which does not augur well.

There were continuous problems in the beginning, which did not auger well.

or

There are continuous problems throughout the beginning stages, which does not auger well.

These sentences are of a very high level!! Very impressive!