Here is the full list of all 42 Lingo achievements.
The base game contains 26 achievements, and there are 2 DLC packs containing 16 achievements.
The Wondrous
The Optimistic
The Observant
The Perceptive
The Bearer
The Tenacious
The Steady
The Initiated
The Discerning
The Undeterred
The Bold
The Traveled
The Agreeable
The Seeker
The Wise
The Colorful
The Master