Game concept

Friend

The game also links it as Friends, Friend's, Friends', Friendship, Friendships.

From the game's encyclopedia

A Friend is a Special Relation indicating close friendship and support, and can be had by both Children and Adults.

Friends with a deep connection might become Best Friends.

The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.

Friend is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "A Friend is a Special Relation indicating close friendship and support, and can be had by both Children and Adults." It is part of Special Relation. The game also links it as Friends, Friend's, Friends', Friendship and 1 more. Patch 1.20.1.2, from game/common/game_concepts/00_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.

for a guide, post or blog

Source: game/common/game_concepts/00_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.