Where does this definition of filler cap come from?
This entry for filler cap is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is filler cap a noun, verb, or something else?
In this entry, filler cap is tagged as noun.
Does filler cap appear elsewhere on Lughet?
Yes — filler cap appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.