This is the 7998th most frequent French word.
tcf
TCF: Test de connaissance du français (Test of French knowledge), an official French language proficiency exam.
Here, 'TCF' refers to the 'Test de connaissance du français', a standardized test for assessing French language proficiency.
Il faut passer le TCF pour prouver son niveau de français.
You need to take the TCF to prove your level of French.
In this sentence, 'TCF' is used to describe the results of the standardized French language proficiency test.
Les résultats du TCF sont reconnus par de nombreuses institutions internationales.
The TCF results are recognized by many international institutions.
The term 'TCF' is mentioned to denote the test taken by the subject to assess her language proficiency.