Denshi Jisho — Online Japanese dictionary

覚える おぼえる 1: to memorize; to memorise; to commit to memory; to learn by heart; to bear in mind; to remember;
2: to learn; to pick up; to acquire;
3: to feel;
4: to think; to regard
Common word, Ichidan verb, Transitive verb 
憶える おぼえる to memorize; to memorise; to commit to memory; to learn by heart; to bear in mind; to remember
Ichidan verb, Transitive verb 
覺束ない おぼつかない 1: (Usually written using kana alone) uncertain; doubtful;
2: (Usually written using kana alone) unreliable; unsteady; shaky; faltering
Ateji (phonetic) reading, Out-dated kanji, Adjective 
覺束ない かくそくない 1: (Usually written using kana alone) uncertain; doubtful;
2: (Usually written using kana alone) unreliable; unsteady; shaky; faltering
Ateji (phonetic) reading, Out-dated kanji, Irregular kana usage, Adjective 

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