Meta-analysis is a type of statistical synthesis. A narrative synthesis combines the findings of multiple studies using written description only.

All systematic reviews, including those that include meta-analysis, will contain an element of narrative synthesis by providing a written summary of the evidence found.

For help with this see:

Cochrane Handbook Chapter 10 Analysing data and undertaking meta-analyses

Systematic Reviews: CRDs Guidance Section 1.3.5.1 Narrative Reviews

JBI Manual for Evidence Synthesis Section 5 Systematic reviews of textual evidence: narrative, expert opinion or policy 

Cooper, H. M., Patall, et al. (2009) Research Synthesis and Meta-Analysis, in Bickman, L. & Rog, D.J. (2009) The SAGE handbook of applied social research methods. 2nd ed.. Los Angeles: SAGE.

Dobbins, M. (2017) Rapid review guidebook: Steps for conducting a rapid review. Available at: https://www.nccmt.ca/tools/rapid-review-guidebook.

Garritty, C. et al. (2024) 'Updated recommendations for the Cochrane rapid review methods guidance for rapid reviews of effectiveness', BMJ, 384. Available at: https://www.ncbi.nlm.nih.gov/pubmed/38320771.

Tricco, A.C., Langlois, E.V. and Straus, S.E. (2017) Rapid reviews to strengthen health policy and systems: a practical guide. Available at: https://apps.who.int/iris/handle/10665/258698.

For further clarification check with your supervisor or tutor.