little island 大 / 太: how to tell them apart
太 is 大 with a dot underneath (太好了, 太阳).
大 dà — big
大
| 大象 | dà xiàng | elephant | 1B lesson 18 | |
| 粗大 | cū dà | thick and big; large | 3A lesson 4 | |
| 满头大汗 | mǎn tóu dà hàn | sweating profusely | 3A lesson 8 | |
| 大拇指 | dà mǔ zhǐ | thumb | 3B lesson 12 |
太 tài — too, extremely
太
| 太阳 | tài yáng | sun | 1A lesson 5 | |
| 太了不起 | tài liǎo bu qǐ | too amazing | 4B lesson 13 |