[Beira]

THOTH XXI THE UNIVERSE
Reduces to thrèe.
From the keywords of the 21 ways book for the three I find that the most relevant for my card are:

Integration
Understanding
Fullfillment

I wouldn't use this same triplet for any of the other cards connected to threes..

For the Empress I would go with fruition, expectancy and love.
For the Hanged Man I would choose blending, understanding and development.
The three of wands is about application, expression, creativity.
The three of cups about togetherness, comprehension and socialisation.
The three of swords about sorrow, result of previous union, fulcrum.
The three of coins about fertilisation, building and fruition