diff --git a/book.c b/book.c
index cb6e205..8189e6f 100644
--- a/book.c
+++ b/book.c
@@ -78,7 +78,7 @@ static void encode_book(Book* book, json_t* book_json) {
  * Exported functions
  */
 
-char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position, Book_Mode mode, Gaiji_Context* context) {
+char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position, Book_Mode mode, Gaiji_Table* table) {
     if (eb_seek_text(book, position) != EB_SUCCESS) {
         return NULL;
     }
@@ -93,7 +93,7 @@ char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position,
                 book,
                 NULL,
                 hookset,
-                context,
+                table,
                 ARRSIZE(data) - 1,
                 data,
                 &data_length
@@ -104,7 +104,7 @@ char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position,
                 book,
                 NULL,
                 hookset,
-                context,
+                table,
                 ARRSIZE(data) - 1,
                 data,
                 &data_length
diff --git a/book.h b/book.h
index a07cd56..7665695 100644
--- a/book.h
+++ b/book.h
@@ -61,7 +61,7 @@ typedef enum {
  * Functions
  */
 
-char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position, Book_Mode mode, Gaiji_Context* context);
+char* book_read(EB_Book* book, EB_Hookset* hookset, const EB_Position* position, Book_Mode mode, Gaiji_Table* table);
 void book_free(Book* book);
 void book_dump(Book* book, bool pretty_print, FILE* fp);
 
diff --git a/gaiji.c b/gaiji.c
index 03a4c54..93b788e 100644
--- a/gaiji.c
+++ b/gaiji.c
@@ -27,7 +27,7 @@
  * Macros
  */
 
-#define GAIJI_CONTEXT(name, ents) {\
+#define GAIJI_TABLE(name, ents) {\
     name,\
     gaiji_table_##ents##_wide,\
     ARRSIZE(gaiji_table_##ents##_wide),\
@@ -49,15 +49,15 @@
 #include "tables/gaiji_table_snmkg99.h"
 #include "tables/gaiji_table_wadai5.h"
 
-static const Gaiji_Context gaiji_contexts[] = {
-    GAIJI_CONTEXT("ジーニアス英和辞典", genius),
-    GAIJI_CONTEXT("スーパー大辞林", daijirin),
-    GAIJI_CONTEXT("大辞泉", daijisen),
-    GAIJI_CONTEXT("広辞苑第六版", kojien),
-    GAIJI_CONTEXT("新和英大辞典", wadai5),
-    GAIJI_CONTEXT("新明解国語辞典　", snmkg99),
-    GAIJI_CONTEXT("新英和・和英中辞典", chujiten),
-    GAIJI_CONTEXT("明鏡国語辞典", meikyojj),
+static const Gaiji_Table gaiji_tables[] = {
+    GAIJI_TABLE("ジーニアス英和辞典", genius),
+    GAIJI_TABLE("スーパー大辞林", daijirin),
+    GAIJI_TABLE("大辞泉", daijisen),
+    GAIJI_TABLE("広辞苑第六版", kojien),
+    GAIJI_TABLE("新和英大辞典", wadai5),
+    GAIJI_TABLE("新明解国語辞典　", snmkg99),
+    GAIJI_TABLE("新英和・和英中辞典", chujiten),
+    GAIJI_TABLE("明鏡国語辞典", meikyojj),
 };
 
 /*
@@ -120,20 +120,20 @@ static void encode_sequence(char output[], int size, const char utf8[]) {
  * Exported functions
  */
 
-const Gaiji_Context* gaiji_context_select(const char name[]) {
-    for (unsigned i = 0; i < ARRSIZE(gaiji_contexts); ++i) {
-        const Gaiji_Context* context = gaiji_contexts + i;
-        if (strcmp(context->name, name) == 0) {
-            return context;
+const Gaiji_Table* gaiji_table_select(const char name[]) {
+    for (unsigned i = 0; i < ARRSIZE(gaiji_tables); ++i) {
+        const Gaiji_Table* table = gaiji_tables + i;
+        if (strcmp(table->name, name) == 0) {
+            return table;
         }
     }
 
     return NULL;
 }
 
-void gaiji_stub_encode(char output[], int size, int code, const Gaiji_Context* context, Gaiji_Width width) {
+void gaiji_stub_encode(char output[], int size, int code, const Gaiji_Table* table, Gaiji_Width width) {
     do {
-        if (context == NULL) {
+        if (table == NULL) {
             break;
         }
 
@@ -142,12 +142,12 @@ void gaiji_stub_encode(char output[], int size, int code, const Gaiji_Context* c
 
         switch (width) {
             case GAIJI_WIDTH_WIDE:
-                entries = context->table_wide;
-                count = context->count_wide;
+                entries = table->table_wide;
+                count = table->count_wide;
                 break;
             case GAIJI_WIDTH_NARROW:
-                entries = context->table_narrow;
-                count = context->count_narrow;
+                entries = table->table_narrow;
+                count = table->count_narrow;
                 break;
         }
 
diff --git a/gaiji.h b/gaiji.h
index 78c725d..01da232 100644
--- a/gaiji.h
+++ b/gaiji.h
@@ -23,9 +23,9 @@
  * Constants
  */
 
-#define MAX_UTF8_BYTES   9
-#define MAX_STUB_BYTES   32
-#define MAX_CONTEXT_NAME 256
+#define MAX_UTF8_BYTES 9
+#define MAX_STUB_BYTES 32
+#define MAX_TABLE_NAME 256
 
 /*
  * Types
@@ -37,12 +37,12 @@ typedef struct {
 } Gaiji_Entry;
 
 typedef struct {
-    char               name[MAX_CONTEXT_NAME];
+    char               name[MAX_TABLE_NAME];
     const Gaiji_Entry* table_wide;
     int                count_wide;
     const Gaiji_Entry* table_narrow;
     int                count_narrow;
-} Gaiji_Context;
+} Gaiji_Table;
 
 typedef enum {
     GAIJI_WIDTH_WIDE,
@@ -53,8 +53,8 @@ typedef enum {
  * Functions
  */
 
-const Gaiji_Context* gaiji_context_select(const char name[]);
-void gaiji_stub_encode(char output[], int size, int code, const Gaiji_Context* context, Gaiji_Width width);
+const Gaiji_Table* gaiji_table_select(const char name[]);
+void gaiji_stub_encode(char output[], int size, int code, const Gaiji_Table* table, Gaiji_Width width);
 void gaiji_stub_decode(char output[], int size, const char input[]);
 
 #endif /* GAIJI_H */
diff --git a/main.c b/main.c
index 7724af3..a0215a2 100644
--- a/main.c
+++ b/main.c
@@ -35,7 +35,7 @@
  * Local functions
  */
 
-static void export_subbook_entries(Book_Subbook* subbook, EB_Book* eb_book, EB_Hookset* eb_hookset, Gaiji_Context* context) {
+static void export_subbook_entries(Book_Subbook* subbook, EB_Book* eb_book, EB_Hookset* eb_hookset, Gaiji_Table* table) {
     if (subbook->entry_capacity == 0) {
         subbook->entry_capacity = 16384;
         subbook->entries = malloc(subbook->entry_capacity * sizeof(Book_Entry));
@@ -58,38 +58,38 @@ static void export_subbook_entries(Book_Subbook* subbook, EB_Book* eb_book, EB_H
             }
 
             Book_Entry* entry = subbook->entries + subbook->entry_count++;
-            entry->heading = book_read(eb_book, eb_hookset, &hit->heading, BOOK_MODE_HEADING, context);
-            entry->text = book_read(eb_book, eb_hookset, &hit->text, BOOK_MODE_TEXT, context);
+            entry->heading = book_read(eb_book, eb_hookset, &hit->heading, BOOK_MODE_HEADING, table);
+            entry->text = book_read(eb_book, eb_hookset, &hit->text, BOOK_MODE_TEXT, table);
         }
     }
     while (hit_count > 0);
 }
 
 static void export_subbook(Book_Subbook* subbook, EB_Book* eb_book, EB_Hookset* eb_hookset) {
-    Gaiji_Context context = {};
+    Gaiji_Table table = {};
     char title[EB_MAX_TITLE_LENGTH + 1];
     if (eb_subbook_title(eb_book, title) == EB_SUCCESS) {
         subbook->title = eucjp_to_utf8(title);
-        context = *gaiji_context_select(subbook->title);
+        table = *gaiji_table_select(subbook->title);
     }
 
     if (eb_have_copyright(eb_book)) {
         EB_Position position;
         if (eb_copyright(eb_book, &position) == EB_SUCCESS) {
-            subbook->copyright = book_read(eb_book, eb_hookset, &position, BOOK_MODE_TEXT, &context);
+            subbook->copyright = book_read(eb_book, eb_hookset, &position, BOOK_MODE_TEXT, &table);
         }
     }
 
     if (eb_search_all_alphabet(eb_book) == EB_SUCCESS) {
-        export_subbook_entries(subbook, eb_book, eb_hookset, &context);
+        export_subbook_entries(subbook, eb_book, eb_hookset, &table);
     }
 
     if (eb_search_all_kana(eb_book) == EB_SUCCESS) {
-        export_subbook_entries(subbook, eb_book, eb_hookset, &context);
+        export_subbook_entries(subbook, eb_book, eb_hookset, &table);
     }
 
     if (eb_search_all_asis(eb_book) == EB_SUCCESS) {
-        export_subbook_entries(subbook, eb_book, eb_hookset, &context);
+        export_subbook_entries(subbook, eb_book, eb_hookset, &table);
     }
 }