This is the 579th most frequent Estonian word.
parima
The Estonian word "parima" means "the best" (genitive or partitive form of "parim").
The word 'parimaid' (partitive plural form of 'parim') is used here to describe 'lahendusi' indicating the solutions we are looking for are of high quality.
Otsime parimaid lahendusi probleemidele.
We are looking for the best solutions to the problems.
Here, 'parima' (genitive singular form of 'parim') is used to describe the quality of the 'gift' received.
Ta andis mulle parima kingituse sünnipäevaks.
He/she gave me the best gift for my birthday.
The word 'parimat' (partitive singular form of 'parim') is used to denote putting forth the utmost effort in the action of learning.