"significant dedication" is a correct and usable phrase in written English. You could use it to describe the amount of effort or commitment someone has put into something. For example, you could say: "My parents have shown a significant dedication to ensuring I receive a great education.".
Federal Judge Richard Holwell acknowledged Rajaratnam's "very significant dedication to others" at sentencing, giving him 11 years even though sentencing guidelines called for as much as 24 1/2 years.
The assistants find that their job function require significant dedication, good interpersonal skills, and a strong will to create room for themselves to fulfil their job function.
Exporting is a huge step to take in business and, like all aspects of your startup journey, requires significant research and dedication.
Despite this significant interest and dedication to the growth of EM as a specialty, a significant shortage of EM-trained physicians remains in Turkey, particularly in rural and underserved areas.
MM, KO, SN, ZK, SYS, NA, KK and FA demonstrated significant input and dedication during patient recruitment and data collection.
This demands significant discipline and dedication, as a multicenter study with substantial distances between participating centers makes coordination particularly arduous, a factor to be taken into account when considering the obstacles to be overcome.
The mass mailing Harvard sent specified that the university sought "a person of high intellectual distinction, with proven qualities of leadership, a devotion to excellence in education and research, a capacity to guide a complex institution through a time of significant change, and a dedication to the ideals and values vital to a community of learning".
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK