English: geofilter
Welsh: geohidlydd
Subject: TGCh
Welsh definition: Geofilters are special overlays that communicate the “where and when” of a Snap in a fun way, whether you're sending it to a friend or adding it to your Story.
Welsh context: Mae Croeso Cymru hefyd yn creu geohidlyddion er mwyn annog defnyddwyr i rannu eu lluniau.
Plural: geohidlyddion
Notes: Cyfleuster yn Snapchat.