diff --git a/dict.go b/dict.go
index 4a5d3db..5dd5fe9 100644
--- a/dict.go
+++ b/dict.go
@@ -7,18 +7,13 @@ import (
 	"strings"
 )
 
-type WordTagFreq struct {
-	Word, Tag string
-	Freq      float64
-}
-
-func ParseDictFile(dictFilePath string) (wtfs []*WordTagFreq, err error) {
-	var dictFile *os.File
-	dictFile, err = os.Open(dictFilePath)
+func ParseDictFile(dictFilePath string) ([]*Entry, error) {
+	dictFile, err := os.Open(dictFilePath)
 	if err != nil {
-		return
+		return nil, err
 	}
 	defer dictFile.Close()
+	entries := make([]*Entry, 0)
 	scanner := bufio.NewScanner(dictFile)
 	for scanner.Scan() {
 		line := scanner.Text()
@@ -26,18 +21,18 @@ func ParseDictFile(dictFilePath string) (wtfs []*WordTagFreq, err error) {
 		length := len(fields)
 		word := fields[0]
 		word = strings.Replace(word, "\ufeff", "", 1)
-		wtf := &WordTagFreq{Word: word}
+		entry := NewEntry()
+		entry.Word = word
 		if length > 1 {
-			wtf.Freq, err = strconv.ParseFloat(fields[1], 64)
+			entry.Freq, err = strconv.ParseFloat(fields[1], 64)
 			if err != nil {
-				return
+				return nil, err
 			}
 		}
 		if length > 2 {
-			wtf.Tag = fields[2]
+			entry.Flag = fields[2]
 		}
-		wtfs = append(wtfs, wtf)
+		entries = append(entries, entry)
 	}
-	err = scanner.Err()
-	return
+	return entries, scanner.Err()
 }
diff --git a/dictionary.go b/dictionary.go
index 53e0b78..97bb9ac 100644
--- a/dictionary.go
+++ b/dictionary.go
@@ -5,11 +5,16 @@ type Pair struct {
 	Flag string
 }
 
-type Token struct {
+type Entry struct {
 	*Pair
 	Freq float64
 }
 
-type DictLoader interface {
-	Add(*Token)
+func NewEntry() *Entry {
+	return &Entry{new(Pair), 0.0}
+}
+
+type Loader interface {
+	AddEntry(Entry)
+	CachePath(string) string
 }
diff --git a/posseg/posseg.go b/posseg/posseg.go
index d7996bd..f5b281e 100644
--- a/posseg/posseg.go
+++ b/posseg/posseg.go
@@ -25,11 +25,11 @@ type Posseg struct {
 	Flag map[string]string
 }
 
-func (p *Posseg) Add(wtf *jiebago.WordTagFreq) {
-	if len(wtf.Tag) > 0 {
-		p.Flag[wtf.Word] = strings.TrimSpace(wtf.Tag)
+func (p *Posseg) AddEntry(entry *jiebago.Entry) {
+	if len(entry.Tag) > 0 {
+		p.Flag[Entry.Word] = strings.TrimSpace(Entry.Flag)
 	}
-	p.AddWord(wtf)
+	p.Add(entry.Word, entry.Freq)
 }
 
 // Set dictionary, it could be absolute path of dictionary file, or dictionary
diff --git a/trie.go b/trie.go
index bf8920f..5351024 100644
--- a/trie.go
+++ b/trie.go
@@ -60,13 +60,13 @@ func (j *Jieba) load(dictFileName string) error {
 	}
 
 	if !isDictCached {
-		wtfs, err := ParseDictFile(dictFilePath)
+		entries, err := ParseDictFile(dictFilePath)
 		if err != nil {
 			return err
 		}
 
-		for _, wtf := range wtfs {
-			j.AddWord(wtf)
+		for _, entry := range entries {
+			j.AddEntry(entry)
 		}
 		// dump trie
 		cacheFile, err = os.OpenFile(cacheFilePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
@@ -85,27 +85,30 @@ func (j *Jieba) load(dictFileName string) error {
 	return nil
 }
 
-func (j *Jieba) AddWord(wtf *WordTagFreq) {
-	j.Freq[wtf.Word] = wtf.Freq
-	j.Total += wtf.Freq
-	runes := []rune(wtf.Word)
-	count := len(runes)
-	for i := 0; i < count; i++ {
-		wfrag := string(runes[0 : i+1])
-		if _, ok := j.Freq[wfrag]; !ok {
-			j.Freq[wfrag] = 0.0
+func (j *Jieba) AddEntry(entry *Entry) {
+	j.Add(entry.Word, entry.Freq)
+}
+
+func (j *Jieba) Add(word string, freq float64) {
+	j.Freq[word] = freq
+	j.Total += freq
+	runes := []rune(word)
+	for i := 0; i < len(runes); i++ {
+		frag := string(runes[0 : i+1])
+		if _, ok := j.Freq[frag]; !ok {
+			j.Freq[frag] = 0.0
 		}
 	}
 }
 
 // Load user specified dictionary file.
 func (j *Jieba) LoadUserDict(dictFilePath string) error {
-	wtfs, err := ParseDictFile(dictFilePath)
+	entries, err := ParseDictFile(dictFilePath)
 	if err != nil {
 		return err
 	}
-	for _, wtf := range wtfs {
-		j.AddWord(wtf)
+	for _, entry := range entries {
+		j.Add(entry.Word, entry.Freq)
 	}
 	return nil
 }