This tool is donation based and free. 🙏 We're looking for donations to keep it running — $360/year covers our server costs.

$18 of $360 · 5%
Donate
This fact check is over a week old. Newer information may be available.

Fact Check: FF

“FF”
Abbreviation for folios
Confidence: High Checked on August 17, 2026

Summary

“FF” is a standard abbreviation meaning “folios,” used in citations to refer to the pages that follow. It can also denote “following pages” or, in informal contexts, “fan fiction,” but its primary dictionary definition is “folios.”

Recheck this fact Runs a fresh check with up-to-date sources

Sources 60 searched

pubmed.ncbi.nlm.nih.gov
cdc.gov
  • Products - Data Briefs - Number 524 - January 2025

    Figure 2. Percentage of adults ... 2023 · Between 2019 and 2023, the percentage of adults who used electronic cigarettes increased significantly for all age groups, except those ages 18–20 and 65 and older (Figure 3, Table 3). The observed increases in prevalence ...

nimh.nih.gov
  • What is Prevalence? - National Institute of Mental Health (NIMH)

    To ensure a selected sample is representative of an entire population, statistical ‘weights’ may be applied. Weighting the sample mathematically adjusts the sample characteristics to match with the target population. Prevalence may be reported as a percentage (5%, or 5 people out of 100), ...

pmc.ncbi.nlm.nih.gov
factually.gov.sg
  • Home | Factually

    Debunking misinformation and disinformation · Find out more · Clarifying widespread or common misperceptions of Government policy, or inaccurate assertions on matters of public concern that can harm Singapore's social fabric.

dictionary.cambridge.org
en.wiktionary.org
  • ff. - Wiktionary, the free dictionary

    The abbreviation ff. is used in citation to refer to a section for which no final page number can usefully be given. If there is only a single section following, f.

merriam-webster.com

This fact check is free and donation-based. $1 powers ~30 fact-checks.

Donate $1 to support fact-checking

Check another fact