diff --git a/.gitignore b/.gitignore
index 9b63f2c..2de44bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 *.json
 *.txt
 *.xml
-kanji-merge*
+rtk-merge*
diff --git a/go.mod b/go.mod
index 5b8104e..7b76224 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module git.foosoft.net/alex/rtk-merge
 
 go 1.21.8
+
+require github.com/themoeway/jmdict-go v0.0.0-20230321060422-fa8f5d54f364 // indirect
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..267eb0b
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/themoeway/jmdict-go v0.0.0-20230321060422-fa8f5d54f364 h1:JSSM5osTN5FCoj7uErWoMVY+IbDh+OG0aRJnKsxgngc=
+github.com/themoeway/jmdict-go v0.0.0-20230321060422-fa8f5d54f364/go.mod h1:M9O+lJXOwrOqpN4VUv8Qkn1gsZ/SZaSAiF7nj0m1NZk=
diff --git a/main.go b/main.go
index d746616..30086b5 100644
--- a/main.go
+++ b/main.go
@@ -2,11 +2,15 @@ package main
 
 import (
 	"encoding/csv"
+	"errors"
 	"flag"
 	"fmt"
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
+
+	"github.com/themoeway/jmdict-go"
 )
 
 type (
@@ -36,6 +40,59 @@ func injectStories(table Table, path string) error {
 }
 
 func injectKanjidic(table Table, path string) error {
+	fp, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer fp.Close()
+
+	kd, err := jmdict.LoadKanjidic(fp)
+	if err != nil {
+		return err
+	}
+
+	for i, row := range table {
+		var found bool
+		for _, character := range kd.Characters {
+			if character.Literal != row[0] {
+				continue
+			}
+
+			var (
+				meanings []string
+				kunyomi  []string
+				onyomi   []string
+			)
+
+			for _, reading := range character.ReadingMeaning.Readings {
+				switch reading.Type {
+				case "ja_on":
+					onyomi = append(onyomi, reading.Value)
+				case "ja_kun":
+					kunyomi = append(kunyomi, reading.Value)
+				}
+			}
+
+			for _, meaning := range character.ReadingMeaning.Meanings {
+				if meaning.Language == nil {
+					meanings = append(meanings, meaning.Meaning)
+				}
+			}
+
+			const seperator = " "
+			row = append(row, strings.Join(meanings, seperator))
+			row = append(row, strings.Join(kunyomi, seperator))
+			row = append(row, strings.Join(onyomi, seperator))
+
+			table[i] = row
+			found = true
+		}
+
+		if !found {
+			return errors.New("character not found")
+		}
+	}
+
 	return nil
 }
 
@@ -57,6 +114,9 @@ func loadTable(path string) (Table, error) {
 
 	for i := range table {
 		table[i] = table[i][:3]
+		if len(table[i]) != 3 {
+			return nil, errors.New("unexpected column count")
+		}
 	}
 
 	return table, nil
@@ -97,7 +157,7 @@ func main() {
 		os.Exit(2)
 	}
 
-	table, err := loadTable(os.Args[1])
+	table, err := loadTable(args[0])
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -114,7 +174,7 @@ func main() {
 		}
 	}
 
-	if err := saveTable(os.Args[2], table); err != nil {
+	if err := saveTable(args[1], table); err != nil {
 		log.Fatal(err)
 	}
 }