diff --git a/go.mod b/go.mod
index c48fbe1..008dbab 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/chainreactors/ipcs v0.0.13
 	github.com/chainreactors/logs v0.6.2
 	github.com/chainreactors/parsers v0.2.7
-	github.com/chainreactors/words v0.1.1
+	github.com/chainreactors/words v0.2.1
 )
 
 require (
diff --git a/go.sum b/go.sum
index a920101..367fe2d 100644
--- a/go.sum
+++ b/go.sum
@@ -21,8 +21,8 @@ github.com/chainreactors/logs v0.6.2/go.mod h1:Y0EtAnoF0kiASIJUnXN0pcOt420iRpHOA
 github.com/chainreactors/parsers v0.2.6/go.mod h1:Z9weht+lnFCk7UcwqFu6lXpS7u5vttiy0AJYOAyCCLA=
 github.com/chainreactors/parsers v0.2.7 h1:3iEuluL7gSDrElZWyf1KEiTgddgcoZC0IaIHb9KA3pk=
 github.com/chainreactors/parsers v0.2.7/go.mod h1:Z9weht+lnFCk7UcwqFu6lXpS7u5vttiy0AJYOAyCCLA=
-github.com/chainreactors/words v0.1.1 h1:Zw4HKFtYcIH5SfuCV0X6kj/A5sN99jrQD2ChUonLOV8=
-github.com/chainreactors/words v0.1.1/go.mod h1:jRcFgafTKqdkd1+StzPCTJG1ESrZHluXEO2eERdHBMQ=
+github.com/chainreactors/words v0.2.1 h1:yQvNnLF3VM2QBo611FhXUEr5i+O4cWY3jUvhDfAknIA=
+github.com/chainreactors/words v0.2.1/go.mod h1:jRcFgafTKqdkd1+StzPCTJG1ESrZHluXEO2eERdHBMQ=
 github.com/davecgh/go-spew v0.0.0-20161028175848-04cdfd42973b/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
diff --git a/internal/checkpool.go b/internal/checkpool.go
index 74e8b9a..dc02ea9 100644
--- a/internal/checkpool.go
+++ b/internal/checkpool.go
@@ -18,7 +18,7 @@ func NewCheckPool(ctx context.Context, config *pkg.Config) (*CheckPool, error) {
 		ctx:         pctx,
 		cancel:      cancel,
 		client:      ihttp.NewClient(config.Thread, 2, config.ClientType),
-		worder:      words.NewWorder(config.Wordlist),
+		worder:      words.NewWorder(config.Wordlist, config.Fns),
 		wg:          sync.WaitGroup{},
 		reqCount:    1,
 		failedCount: 1,
@@ -103,12 +103,6 @@ Loop:
 				break Loop
 			}
 
-			for _, fn := range p.Fns {
-				u = fn(u)
-			}
-			if u == "" {
-				continue
-			}
 			p.wg.Add(1)
 			_ = p.pool.Invoke(newUnit(u, WordSource))
 		case <-ctx.Done():
diff --git a/internal/option.go b/internal/option.go
index 052866c..2d16fb4 100644
--- a/internal/option.go
+++ b/internal/option.go
@@ -208,17 +208,23 @@ func (opt *Option) PrepareRunner() (*Runner, error) {
 	}
 
 	if opt.Suffixes != nil {
-		dicts = append(dicts, opt.Suffixes)
-		opt.Word += fmt.Sprintf("{?%d}", len(dicts)-1)
+		mask.SpecialWords["suffix"] = opt.Suffixes
+		opt.Word += "{@suffix}"
 	}
 	if opt.Prefixes != nil {
-		dicts = append(dicts, opt.Prefixes)
-		opt.Word = fmt.Sprintf("{?%d}", len(dicts)-1) + opt.Word
+		mask.SpecialWords["prefix"] = opt.Prefixes
+		opt.Word = "{@prefix}" + opt.Word
 	}
 
 	if opt.Extensions != "" {
-		dicts = append(dicts, strings.Split(opt.Extensions, ","))
-		opt.Word += fmt.Sprintf("{?%d}", len(dicts)-1)
+		exts := strings.Split(opt.Extensions, ",")
+		for i, e := range exts {
+			if !strings.HasPrefix(e, ".") {
+				exts[i] = "." + e
+			}
+		}
+		mask.SpecialWords["ext"] = exts
+		opt.Word += "{@ext}"
 	}
 
 	mask.CustomWords = dicts
diff --git a/internal/pool.go b/internal/pool.go
index c0d00a2..9c0b59b 100644
--- a/internal/pool.go
+++ b/internal/pool.go
@@ -33,7 +33,7 @@ func NewPool(ctx context.Context, config *pkg.Config) (*Pool, error) {
 		ctx:         pctx,
 		cancel:      cancel,
 		client:      ihttp.NewClient(config.Thread, 2, config.ClientType),
-		worder:      words.NewWorder(config.Wordlist),
+		worder:      words.NewWorder(config.Wordlist, config.Fns),
 		baselines:   make(map[int]*pkg.Baseline),
 		tempCh:      make(chan *pkg.Baseline, config.Thread),
 		wg:          sync.WaitGroup{},