Across
1 Crossing national boundaries (13)
7 Lucky number (5)
8 Something observed (11)
10 Item for admission (6)
13 Approval (10)
16 Official permission to enter a country (4)
17 Collection (3)
18 Rim (4)
19 Slender (6)
20 Geographical guide (3)
21 Opposite of “young” (3)
23 When someone or something is replaced by someone or something else (12)
27 Sickening (5)
30 Preposition (2)
32 Categorization (12)
35 Not bad (4)
38 A part inside a plant or animal that is shaped like a bag and contains liquid or air (3)
39 Seeing organ (3)
40 Not she, but ____ (2)
41 Holder for a letter (8)
Down
1 Understanding of something (14)
2 Word indicating excess (3)
3 Honor (7)
4 What you breathe (3)
5 Opposite of “in” (3)
6 Word used to show how far back in the past something happened (3)
9 Opposite of day (5)
10 The process of sending out a signal or message using radio, TV, or similar equpiment (12)
11 Protruding beyond (11)
12 Gas system (8)
14 What a farmer’s seeds produce (4)
15 Eighth month (6)
19 Yes or ____ ? (2)
22 ____ and night (3)
24 Gun sound (4)
25 Understanding (6)
26 A word used when talking about something that might happen or be true, or might have happened (2)
28 On top of (4)
29 Therefore (2)
31 Fish’s means of moving (3)
33 Supporting curve in a wall (4)
34 Frozen water (3)
36 Liquid used in cooking (3)
37 Put briefly into water (3)