a small help; some assistance; an aid
Used to modestly describe a contribution that provides some help, often in formal or written contexts. Common in phrases like 一助となる or 一助になれば幸いです.
I hope this material will be of some help in your research.
微力ながら、地域の発展に一助となれるよう努めます。
Though my power is small, I will strive to be of some assistance to the development of the community.
I hope this material will be of some help in solving the problem.
I hope this book will be of some help in furthering readers' understanding.
I want this donation to serve as some help toward the recovery effort.