Example
Dataframe: A
Word_A Frequency
0 Large 10
1 Happy 15
Dataframe: B
Word_B Document
0 Big 1
1 Huge 1
2 Great 2
3 Cheerful 1
4 Merry 3
5 Joyful 2
Resulting Dataframe: C
(The words in Dataframe A have been mapped to their synonyms in Dataframe B)
Word_A Word_B Frequency Document
0 Large Big 10 1
1 Large Huge 10 1
2 Large Great 10 2
3 Happy Cheerful 15 1
4 Happy Merry 15 3
5 Happy Joyful 15 2