Meanings of fight tenaciously in English

Had she suspected that her life was threatened, she would have fought tenaciously.

She fought tenaciously, as a writer and as an editor.

Restaurants and pubs long fought tenaciously against regulations on smoking, in part due to economic reasons but also because of the country's Nazi past.

Although Rosol fought tenaciously to save three set points and hold for 3-5, Murray closed it out after 43 minutes.

They had fought tenaciously and well for every inch of ground since the Red Army crossed the Elbe, retreating only when it was militarily expedient.